Remove GemFire connector (#1561)

For the opensource snappy-connectors repository, the gemfire-connector module
still depends on the closed-source Pivotal's Gemfire jar, so removed those references.

It can be added back in future if the code in snappy-connectors repository is
modified to support Apache Geode instead.

Also added OSS versions of snappy-aqp and snappy-connectors repositories as submodules.

Upgraded gradle to v5.6.4, the latest 5.x release.

Fixed multiple test failures.

Also moved common test cluster start/stop etc to new class ClusterUtils that also
creates a separate directory for cluster instead of using the main snappy product directory

Updated NOTICE, build.

- fix snappy-nodes.sh script to work uniformly for both local and remote execution
- updated year in LICENSE
- also fixed occasional bulk write lock timeout
- updated submodule links

.gitignore

@@ -1,9 +1,6 @@
 *.class
-aqp
-!core/**/aqp
 benchmarking/
 hydraLogs/
-snappy-connectors/
 snappy-poc/
 vm_*
 

.gitmodules

@@ -10,4 +10,9 @@
         path = spark
         url = https://github.com/TIBCOSoftware/snappy-spark.git
         branch = snappy/branch-2.1 
-
+[submodule "aqp"]
+	path = aqp
+	url = https://github.com/TIBCOSoftware/snappy-aqp.git
+[submodule "snappy-connectors"]
+	path = snappy-connectors
+	url = https://github.com/TIBCOSoftware/snappy-connectors.git

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2017-2020. TIBCO Software Inc.
+Copyright (c) 2017-2021. TIBCO Software Inc.
 
    Project SnappyData(TM) - Community Edition is licensed under the 
    Apache License, Version 2.0 (the "License"). You may not use the 
@@ -80534,4 +80534,4 @@ Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
-limitations under the License.
+limitations under the License.

NOTICE

@@ -2,7 +2,7 @@ SnappyData OSS Edition
 Copyright 2018 and onwards SnappyData Inc.
 
 
-This is a comprehensive list of software libraries used by SnappyData in version 1.0.
+This is a comprehensive list of software libraries used by SnappyData in version 1.3.0.
 More details on license types, license versions, and contributors can be found further down in this file
 
 HikariCP-2.7.9.jar				Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
@@ -186,6 +186,10 @@ libgemfirexd.dylib				Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 libgemfirexd.so					Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 libgemfirexd64.dylib				Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 libgemfirexd64.so				Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
+libnative.dylib					Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
+libnative.so					Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
+libnative64.dylib				Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
+libnative64.so					Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 libthrift-0.9.3.jar				Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 liquidFillGauge.js				BSD:		http://choosealicense.com/licenses/bsd-2-clause
 log4j-1.2.17.jar				Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
@@ -259,6 +263,7 @@ snappy-spark-streaming_2.11-2.1.1.4.jar		Apache V2:	http://www.apache.org/licens
 snappy-spark-tags_2.11-2.1.1.4.jar		Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 snappy-spark-unsafe_2.11-2.1.1.4.jar		Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 snappy-spark-yarn_2.11-2.1.1.4.jar		Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
+snappydata-aqp_2.11-1.0.2.1.jar			Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 snappydata-cluster_2.11-1.0.2.1.jar		Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 snappydata-core_2.11-1.0.2.1.jar		Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
 snappydata-jdbc_2.11-1.0.2.1-only.jar		Apache V2:	http://www.apache.org/licenses/LICENSE-2.0
@@ -1005,7 +1010,7 @@ SECTION 1: BSD-STYLE, MIT-STYLE, OR SIMILAR STYLE LICENSES
 
 SECTION 2: Apache License, V2.0
 
-   >>> hadoop-common-2.7.3
+   >>> hadoop-common-2.7.7
    >>> swagger-ui-2.0.17
 
 
@@ -1175,7 +1180,7 @@ Copyright (C) 2006-2009 Dustin Sallings
 Apache License, V2.0 is applicable to the following component(s).
 
 
->>> hadoop-common-2.7.3
+>>> hadoop-common-2.7.7
 
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.