Merge pull request #3 from quixxxy/master

small adjustments
basic tests for ping controller and db setup are created. Please not that neo4 does not work correctly with spring 4.x.x so I am using neo4 3.2.0.M1 version.
Merge pull request #4 from quixxxy/master

Add environment filter. Ping request
Merge remote-tracking branch 'remotes/Inviti/master'
Added initial integration test for UserRepository. Added some relationships. Extended User etitiy definiton. minor adjustments.
added remote neo4j server.
added remote neo4j server. Extracted hamcrest to root build.gradle. entity modeling is in progress
Merge pull request #6 from VladPrytula/master

master
Relationship entity for connection between user and meeting created
Relationship entity for connection between user and meeting created + minor changes
Externalized restDb url, added connected graph between meetings and users into test, added hash and equals to NodeEntities.
Merge pull request #7 from VladPrytula/master

Relationship entity for connection between user and meeting created
Fix unit tests