preparing for 2.1.0.M1 release
prepared for 2.1.0 snapshot builds
Changing all examples to use 2.1.0-BUILD-SNAPSHOT as the version
#40 hashCode and equals in unit-tests
DATAGRAPH-213 inheritance with relationship-entities
DATAGRAPH-214 numeric fields can be indexed non-numerically
DATAGRAPH-181 fix for creating unique entities with numeric unique fields, still needs a fix in Neo4j
upgrade to neo4j 1.7
DATAGRAPH-220 upgrade to neo4j 1.7, also with upgrades of java-rest-binding, neo4j-spatial
unique-id indexing with neo4j 1.7
DATAGRAPH-224 changed info logging to debu
DATAGRAPH-181 fix for creating unique entities with numeric unique fields, unique relationships
Polished pom.xml.

Declare non-snapshot repositories not to look for snapshot dependencies (to avoid unnecessary dependency lookups). Upgraded dependency version of neo4j-cypher-dsl dependency to 1.7-SNAPSHOT to align with other dependency versions. Removed duplicate dependency of the gremlin-groovy dependency.
DATAGRAPH-227 - Prepare upgrade to Spring Data Commons 1.3.0.BUILD-SNAPSHOTS.

I've upgraded to depend on Spring Data Commons 1.3.0 as it introduces some API changes for the repositories interfaces.
DATAGRAPH-221 Fixed: Check for existing indexes in cypher now throws an exception if the index is not yet there, this is a regression with Neo4j 1.7
Changed port number of REST tests due to default https port of Neo4j server now being 7473
fixed template tests which did not take the spatial index relationship to the reference node into account
DATAGRAPH-227 spring-data-commons 1.3.RC1
upgraded examples to Neo4j 1.7
Merge branch 'master' into template