Upgrade Selenium version

Change-Id: I0045d246b8841920c6038b34a6c57a4337a2ad00
Reviewed-on: https://pirx.atteo.com/gerrit/448
Tested-by: Mr. Jenkins
Reviewed-by: Sławek Piotrowski <sentinel@atteo.com>
Neo4j Graph DB Service.

Support Impermanent / Embedded modes,
Unit tests included.
Add Activiti service to the root POM as a submodule
Merge pull request #5 from asaf/neo4j

Neo4j Graph DB Service.
Merge pull request #7 from asaf/activiti-in-root-pom

Add Activiti service to the root POM as a submodule
Merge remote-tracking branch 'origin/master'