Added support for Audit Revision log (using providers). Created provider based on Hibernate Envers. Refs #12789


git-svn-id: http://scmcit.gva.es/svn/gvnix/trunk/code@2317 69435866-3869-0410-973d-9f951a852354
Deleting unused variables

git-svn-id: http://scmcit.gva.es/svn/gvnix/trunk/code@2318 69435866-3869-0410-973d-9f951a852354
Fixed evidences found by sonar. Refs #12789


git-svn-id: http://scmcit.gva.es/svn/gvnix/trunk/code@2319 69435866-3869-0410-973d-9f951a852354
Deleting unused variables

git-svn-id: http://scmcit.gva.es/svn/gvnix/trunk/code@2320 69435866-3869-0410-973d-9f951a852354