Merge pull request #8 from baranowb/master

Fix naming race/subcontext and version
Using only one common Connector for EJB3 and UserTransaction
Merge pull request #7 from ehsavoie/singleconnector

Using only one common Connector for EJB3 and UserTransaction
Updating schemas and removing commented code
Merge pull request #9 from ehsavoie/master

Updating schemas and removing commented code