Renamed void-safe ecf using -safe.ecf convention.
Added a cms_demo_module, for now pretty empty, but it will be used to develop/test the cms core.
Clean code: removed unused variables.
Move BASIC_AUTH module to ROC_SERVER setup, as an example
of module extension
Initial Import: Database transaction handling.
Initial Import: Error handling using ewf error library.
Added a CMS_ERROR_FILTER as part of registered filters of CMS_SERVICE
Added nested transaction support.
Added test cases showing transaction support scenarios.
Merge branch 'roc_pe' of https://github.com/jocelyn/ROC into roc_pe

Conflicts:
	cms/cms-safe.ecf