OZP-648: Creating CXF helper bundle

This bundle injects the spring security servlet into the CXF webapp
Merge branch 'master' into feature/ozp-648-current-user
OZP-648: Adding expalnatory comment about spring context hack
OZP-648: Removing CXF Spring security helper bundle
Merge branch 'master' into feature/ozp-648-current-user
OZP-648: Fixing username query