diff --git a/.coveralls.yml b/.coveralls.yml
index b9dda30..9160059 100644
--- a/.coveralls.yml
+++ b/.coveralls.yml
@@ -1,2 +1 @@
 service_name: travis-ci
-repo_token: 18YzfyG8hIc5QtNn3uzpn6GSsFe1WtPD9
diff --git a/.travis.yml b/.travis.yml
index aa88176..fd65af6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,4 @@
-sudo: false
 language: node_js
-cache:
-  directories:
-    - ~/.npm
 notifications:
   email: true
 addons:
@@ -19,9 +15,9 @@ addons:
 env:
   - CXX=g++-4.8
 node_js:
-  - '10'
-  - '8'
-  - '6'
+  - node
+  - lts/*
+  - 8
 before_script:
   - npm install -g grunt-cli
 after_success:
diff --git a/package-lock.json b/package-lock.json
index 1297880..7555f9d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,39 +5,24 @@
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
-      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
+      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
       "dev": true,
       "requires": {
         "@babel/highlight": "^7.0.0"
       }
     },
     "@babel/generator": {
-      "version": "7.3.4",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.3.4.tgz",
-      "integrity": "sha512-8EXhHRFqlVVWXPezBW5keTiQi/rJMQTg/Y9uVCEZ0CAF3PKtCCaVRnp64Ii1ujhkoDhhF1fVsImoN4yJ2uz4Wg==",
+      "version": "7.6.2",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.6.2.tgz",
+      "integrity": "sha512-j8iHaIW4gGPnViaIHI7e9t/Hl8qLjERI6DcV9kEpAIDJsAOrcnXqRS7t+QbhL76pwbtqP+QCQLL0z1CyVmtjjQ==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.3.4",
+        "@babel/types": "^7.6.0",
         "jsesc": "^2.5.1",
-        "lodash": "^4.17.11",
-        "source-map": "^0.5.0",
-        "trim-right": "^1.0.1"
-      },
-      "dependencies": {
-        "lodash": {
-          "version": "4.17.11",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
-          "dev": true
-        },
-        "source-map": {
-          "version": "0.5.7",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
-          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
-          "dev": true
-        }
+        "lodash": "^4.17.13",
+        "source-map": "^0.5.0"
       }
     },
     "@babel/helper-function-name": {
@@ -61,18 +46,18 @@
       }
     },
     "@babel/helper-split-export-declaration": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0.tgz",
-      "integrity": "sha512-MXkOJqva62dfC0w85mEf/LucPPS/1+04nmmRMPEBUB++hiiThQ2zPtX/mEWQ3mtzCEjIJvPY8nuwxXtQeQwUag==",
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.4.4.tgz",
+      "integrity": "sha512-Ro/XkzLf3JFITkW6b+hNxzZ1n5OQ80NvIUdmHspih1XAhtN3vPTuUFT4eQnela+2MaZ5ulH+iyP513KJrxbN7Q==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.0.0"
+        "@babel/types": "^7.4.4"
       }
     },
     "@babel/highlight": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0.tgz",
-      "integrity": "sha512-UFMC4ZeFC48Tpvj7C8UgLvtkaUuovQX+5xNWrsIoMG8o2z+XFKjKaN9iVmS84dPwVN00W4wPmqvYoZF3EGAsfw==",
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
       "dev": true,
       "requires": {
         "chalk": "^2.0.0",
@@ -81,82 +66,82 @@
       }
     },
     "@babel/parser": {
-      "version": "7.3.4",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.3.4.tgz",
-      "integrity": "sha512-tXZCqWtlOOP4wgCp6RjRvLmfuhnqTLy9VHwRochJBCP2nDm27JnnuFEnXFASVyQNHk36jD1tAammsCEEqgscIQ==",
+      "version": "7.6.2",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.6.2.tgz",
+      "integrity": "sha512-mdFqWrSPCmikBoaBYMuBulzTIKuXVPtEISFbRRVNwMWpCms/hmE2kRq0bblUHaNRKrjRlmVbx1sDHmjmRgD2Xg==",
       "dev": true
     },
     "@babel/template": {
-      "version": "7.2.2",
-      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.2.2.tgz",
-      "integrity": "sha512-zRL0IMM02AUDwghf5LMSSDEz7sBCO2YnNmpg3uWTZj/v1rcG2BmQUvaGU8GhU8BvfMh1k2KIAYZ7Ji9KXPUg7g==",
+      "version": "7.6.0",
+      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.6.0.tgz",
+      "integrity": "sha512-5AEH2EXD8euCk446b7edmgFdub/qfH1SN6Nii3+fyXP807QRx9Q73A2N5hNwRRslC2H9sNzaFhsPubkS4L8oNQ==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
-        "@babel/parser": "^7.2.2",
-        "@babel/types": "^7.2.2"
+        "@babel/parser": "^7.6.0",
+        "@babel/types": "^7.6.0"
       }
     },
     "@babel/traverse": {
-      "version": "7.3.4",
-      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.3.4.tgz",
-      "integrity": "sha512-TvTHKp6471OYEcE/91uWmhR6PrrYywQntCHSaZ8CM8Vmp+pjAusal4nGB2WCCQd0rvI7nOMKn9GnbcvTUz3/ZQ==",
+      "version": "7.6.2",
+      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.6.2.tgz",
+      "integrity": "sha512-8fRE76xNwNttVEF2TwxJDGBLWthUkHWSldmfuBzVRmEDWOtu4XdINTgN7TDWzuLg4bbeIMLvfMFD9we5YcWkRQ==",
       "dev": true,
       "requires": {
-        "@babel/code-frame": "^7.0.0",
-        "@babel/generator": "^7.3.4",
+        "@babel/code-frame": "^7.5.5",
+        "@babel/generator": "^7.6.2",
         "@babel/helper-function-name": "^7.1.0",
-        "@babel/helper-split-export-declaration": "^7.0.0",
-        "@babel/parser": "^7.3.4",
-        "@babel/types": "^7.3.4",
+        "@babel/helper-split-export-declaration": "^7.4.4",
+        "@babel/parser": "^7.6.2",
+        "@babel/types": "^7.6.0",
         "debug": "^4.1.0",
         "globals": "^11.1.0",
-        "lodash": "^4.17.11"
+        "lodash": "^4.17.13"
       },
       "dependencies": {
-        "lodash": {
-          "version": "4.17.11",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
-          "dev": true
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
         }
       }
     },
     "@babel/types": {
-      "version": "7.3.4",
-      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.3.4.tgz",
-      "integrity": "sha512-WEkp8MsLftM7O/ty580wAmZzN1nDmCACc5+jFzUt+GUFNNIi3LdRlueYz0YIlmJhlZx1QYDMZL5vdWCL0fNjFQ==",
+      "version": "7.6.1",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.6.1.tgz",
+      "integrity": "sha512-X7gdiuaCmA0uRjCmRtYJNAVCc/q+5xSgsfKJHqMN4iNLILX39677fJE1O40arPMh0TTtS9ItH67yre6c7k6t0g==",
       "dev": true,
       "requires": {
         "esutils": "^2.0.2",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.13",
         "to-fast-properties": "^2.0.0"
-      },
-      "dependencies": {
-        "lodash": {
-          "version": "4.17.11",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
-          "dev": true
-        }
       }
     },
+    "@types/minimatch": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
+      "integrity": "sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==",
+      "dev": true
+    },
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
-      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
-      "dev": true
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q=="
     },
     "ajv": {
-      "version": "5.5.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
-      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "version": "6.10.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
+      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
       "dev": true,
       "requires": {
-        "co": "^4.6.0",
-        "fast-deep-equal": "^1.0.0",
+        "fast-deep-equal": "^2.0.1",
         "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.3.0"
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
       }
     },
     "amdefine": {
@@ -169,8 +154,7 @@
     "ansi-regex": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
-      "dev": true
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
     },
     "ansi-styles": {
       "version": "3.2.1",
@@ -181,10 +165,39 @@
         "color-convert": "^1.9.0"
       }
     },
+    "append-transform": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/append-transform/-/append-transform-1.0.0.tgz",
+      "integrity": "sha512-P009oYkeHyU742iSZJzZZywj4QRJdnTWffaKuJQLablCZ1uz6/cW4yaRgcDaoQ+uwOxxnt0gRUcwfsNP2ri0gw==",
+      "dev": true,
+      "requires": {
+        "default-require-extensions": "^2.0.0"
+      }
+    },
+    "aproba": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/aproba/-/aproba-1.2.0.tgz",
+      "integrity": "sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw=="
+    },
+    "archy": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/archy/-/archy-1.0.0.tgz",
+      "integrity": "sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=",
+      "dev": true
+    },
+    "are-we-there-yet": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz",
+      "integrity": "sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==",
+      "requires": {
+        "delegates": "^1.0.0",
+        "readable-stream": "^2.0.6"
+      }
+    },
     "arg": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.0.tgz",
-      "integrity": "sha512-ZWc51jO3qegGkVh8Hwpv636EkbesNV5ZNQPCtRa+0qytRYPEs9IYT9qITY9buezqUH5uqyzlWLcufrzU2rffdg==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.1.tgz",
+      "integrity": "sha512-SlmP3fEA88MBv0PypnXZ8ZfJhwmDeIE3SP71j37AiXQBXYosPV0x6uISAaHYSlSVhmHOVkomen0tbGk6Anlebw==",
       "dev": true
     },
     "argparse": {
@@ -205,9 +218,9 @@
       }
     },
     "array-differ": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/array-differ/-/array-differ-1.0.0.tgz",
-      "integrity": "sha1-7/UuN1gknTO+QCuLuOVkuytdQDE=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/array-differ/-/array-differ-3.0.0.tgz",
+      "integrity": "sha512-THtfYS6KtME/yIAhKjZ2ul7XI96lQGHRputJQHO80LAWQnuGP4iCIN8vdMRboGbIEYBwU33q8Tch1os2+X0kMg==",
       "dev": true
     },
     "array-find-index": {
@@ -217,24 +230,15 @@
       "dev": true
     },
     "array-union": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
-      "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
-      "dev": true,
-      "requires": {
-        "array-uniq": "^1.0.1"
-      }
-    },
-    "array-uniq": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/array-uniq/-/array-uniq-1.0.3.tgz",
-      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/array-union/-/array-union-2.1.0.tgz",
+      "integrity": "sha512-HGyxoOTYUyCM6stUe6EJgnd4EoewAI7zMdfqO+kGjnlZmBDz/cR5pf8r/cR4Wq60sL/p0IkcjUEEPwS3GFrIyw==",
       "dev": true
     },
     "arrify": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
-      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/arrify/-/arrify-2.0.1.tgz",
+      "integrity": "sha512-3duEwti880xqi4eAMN8AyR4a0ByT90zoYdLlevfrvU43vb0YZwZVfxOgxWrLXXXpyugL0hNZc9G6BiB5B3nUug==",
       "dev": true
     },
     "asap": {
@@ -284,15 +288,13 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
     "bcrypt-pbkdf": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
       "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
       "dev": true,
-      "optional": true,
       "requires": {
         "tweetnacl": "^0.14.3"
       }
@@ -313,7 +315,6 @@
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "dev": true,
       "requires": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -331,11 +332,17 @@
       "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
       "dev": true
     },
-    "builtin-modules": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
-      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
-      "dev": true
+    "caching-transform": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/caching-transform/-/caching-transform-3.0.2.tgz",
+      "integrity": "sha512-Mtgcv3lh3U0zRii/6qVgQODdPA4G3zhG+jtbCWj39RXuUFTMzH0vcdMtaJS1jPowd+It2Pqr6y3NJMQqOqCE2w==",
+      "dev": true,
+      "requires": {
+        "hasha": "^3.0.0",
+        "make-dir": "^2.0.0",
+        "package-hash": "^3.0.0",
+        "write-file-atomic": "^2.4.2"
+      }
     },
     "camelcase": {
       "version": "2.1.1",
@@ -354,11 +361,32 @@
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     "canvas": {
-      "version": "1.6.13",
-      "resolved": "https://registry.npmjs.org/canvas/-/canvas-1.6.13.tgz",
-      "integrity": "sha512-XAfzfEOHZ3JIPjEV+WSI6PpISgUta3dgmndWbsajotz+0TQOX/jDpp2kawjRERatOGv9sMMzk5auB3GKEKA6hg==",
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/canvas/-/canvas-2.6.0.tgz",
+      "integrity": "sha512-bEO9f1ThmbknLPxCa8Es7obPlN9W3stB1bo7njlhOFKIdUTldeTqXCh9YclCPAi2pSQs84XA0jq/QEZXSzgyMw==",
       "requires": {
-        "nan": "^2.10.0"
+        "nan": "^2.14.0",
+        "node-pre-gyp": "^0.11.0",
+        "simple-get": "^3.0.3"
+      },
+      "dependencies": {
+        "node-pre-gyp": {
+          "version": "0.11.0",
+          "resolved": "https://registry.npmjs.org/node-pre-gyp/-/node-pre-gyp-0.11.0.tgz",
+          "integrity": "sha512-TwWAOZb0j7e9eGaf9esRx3ZcLaE5tQ2lvYy1pb5IAaG1a2e2Kv5Lms1Y4hpj+ciXJRofIxxlt5haeQ/2ANeE0Q==",
+          "requires": {
+            "detect-libc": "^1.0.2",
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       "integrity": "sha1-9pPymjFbUNmp2iZGp6ZkXJaYW2o=",
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diff --git a/package.json b/package.json
index c25b34b..8691180 100644
--- a/package.json
+++ b/package.json
@@ -31,18 +31,19 @@
     "post_coverage": "GRUNT_NOMNOML_COVERAGE=1 grunt default coveralls"
   },
   "dependencies": {
-    "nomnoml-cli": "^1.0.2",
+    "node-pre-gyp": "0.13.0",
+    "nomnoml-cli": "^2.0.0",
     "q": "~2.0.3"
   },
   "devDependencies": {
-    "grunt": "~1.0.3",
+    "grunt": "~1.0.4",
     "grunt-contrib-clean": "^2.0.0",
-    "grunt-contrib-jshint": "^2.0.0",
+    "grunt-contrib-jshint": "^2.1.0",
     "grunt-contrib-nodeunit": "^2.0.0",
     "grunt-coveralls": "^2.0.0",
     "grunt-istanbul": "^0.8.0",
     "jshint-stylish": "^2.2.1",
-    "load-grunt-tasks": "^4.0.0",
+    "load-grunt-tasks": "^5.1.0",
     "time-grunt": "^2.0.0"
   },
   "keywords": [