chore: update rx version

chore: update gitignore

hopefully addresses this

ReactiveX/RxJava#5220
https://rollbar.com/Instacart/instashopper-android/items/5076/

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# On branch master
# Your branch is up-to-date with 'origin/master'.
#
# Changes to be committed:
#modified:   .gitignore
#modified:   build.gradle
#modified:   library-extension-rx/build.gradle
#

.gitignore

@@ -1,8 +1,15 @@
-*.iml
 .gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
+local.properties
+.idea
 .DS_Store
-/build
-/captures
+bin/
+gen/
+*.iml
+build/
+crashlytics-build.properties
+com_crashlytics_export_strings.xml
+captures/
+config.xml
+secure.properties
+tmp/
+build.properties

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:2.3.1'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -19,7 +19,7 @@ ext {
     buildToolsVersion = '25.0.2'
 
     versionCode = 8
-    versionName = '3.0'
+    versionName = '3.1'
 }
 
 allprojects {

library-extension-rx/build.gradle

@@ -24,7 +24,7 @@ android {
 
 dependencies {
     compile project(path: ':library')
-    compile 'io.reactivex.rxjava2:rxjava:2.0.8'
+    compile 'io.reactivex.rxjava2:rxjava:2.1.0'
 
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'