Evade bug in git-commit-id by adding neo4j-root profile to kernel pom

o This is needed to build neo4j as a submodule in the root
  project as the plugin is not smart enough to find
  its .git directory when using git submodules
Merge remote-tracking branch 'upstream/1.9-maint'
Improved transaction documentation.
Remove references to tinkerpop maven repositories.
Add vDefault synonym for v2_0
Add tests for delete/remove
Type check expression following DELETE

(experimental parser)
Add REMOVE property (experimental parser)