Updated Diff web-api version to return the objectId, changeType and geometry.
Initial pass at culling out features from diff by means of a bounding box.
Added page option to log and getCommitGraph through the web-api.
Changed Neo4J version to the latest stable build.
Merge branch 'CommonAncestorFix' into node-test
Merge commit '5a27736f08ce16c57b5e6960099e7a3342c706ed' into node-test
Merge commit '2a3ad91e9dec55fd3d5477f17945d8b0eeba1d60' into node-test

Conflicts:
	src/web/api/src/main/java/org/geogit/web/api/ResponseWriter.java
Allow empty merge commits to bring the target branch into the history.