Add graph trend queries

Signed-off-by: Byron Ruth <b@devel.io>
Integrate various long-standing query and function changes

This contains a hodgepodge of changes that are very much still in flux.

Signed-off-by: Byron Ruth <b@devel.io>
Update test Neo4j instance to 2.1.3

Signed-off-by: Byron Ruth <b@devel.io>
Remove documentation on README in favor of the wiki

Signed-off-by: Byron Ruth <b@devel.io>