Upgrading to CXF 2.7.5

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1482258 13f79535-47bb-0310-9956-ffa450edef68
Some upgrades (logback, maven-surefire-plugin, maven-failsafe-plugin and build-helper-maven-plugin)

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1482713 13f79535-47bb-0310-9956-ffa450edef68
Merge from 1_1_X

git-svn-id: https://svn.apache.org/repos/asf/syncope/trunk@1482714 13f79535-47bb-0310-9956-ffa450edef68