fix bug on peristed document inside a embeddedmap, issue #2660
fixed bug on serialization of vertex as value of property, issue #2761
added test case for issue #1760, minor cleanup
Supported getType() in Vertex and Edge.
Enhance OStringSerializerHelperTest by new tests
Changed contract to OCollection and RidBag remove() to return boolean
Fixed issue #2800
Caught exception on connection close avoiding the stack trace
Issue #2691 fix which in reality leads to NPE was removed.
Revert "Changed contract to OCollection and RidBag remove() to return boolean"

This reverts commit dc858b9f79c5a4306e86bd6c707eb27ee8b0be57.
Changed strategy to replace LINKS in MOVE VERTEX command
MOVE VERTEX: minor, fixed syntax
Merged commit fb37ebca313e077a7911c81a163c67383d6e4434 from 1.7.9 (by @srgg )
Small fix to restore NULL check on label because BP need it
Merge branch 'develop' of github.com:orientechnologies/orientdb into failing_develop

Conflicts:
	graphdb/src/test/java/com/tinkerpop/blueprints/impls/orient/OrientGraphTest.java
changed the test case for support old vertex storing, issue #2761
Merge branch 'develop' into merged_develop

Conflicts:
	graphdb/src/test/java/com/tinkerpop/blueprints/impls/orient/OrientGraphVertexInPropertyTest.java
removed support for null label edges.