Cleaning up double DefaultAttributableTransformer definition as discussed in SYNCOPE-449

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1545707 13f79535-47bb-0310-9956-ffa450edef68
Upgrading CXF to 2.7.8

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1545713 13f79535-47bb-0310-9956-ffa450edef68
[SYNCOPE-449] Merge from 1_1_X

git-svn-id: https://svn.apache.org/repos/asf/syncope/trunk@1545714 13f79535-47bb-0310-9956-ffa450edef68