upgrade to Neo4j 3.5

[ikwattro]

Current upgrade : 3.5-rc01

Major changes :

• TestGraphDatabaseFactory now is in community-it-support package
• Neo4j shell has been removed in favor of cypher-shell changelog
• Neo4j Enterprise is now available through custom repository

Tests pass: Yes

[ikwattro]

@bachmanm Tests are failing because resttest snapshot is not on maven