Updating git link for `cancancan-neo4j` gem
Updating git link for `cancancan-neo4j` gem

Updating git link for `cancancan-neo4j` gem to CanCanCommunity repo.

(cherry picked from commit 82ebe15860c1d6470f7e015040c55b4cdfb98e10)

neo4jrb/neo4j,neo4jrb/neo4j,leviwilson/neo4j,leviwilson/neo4j