[KARAF-2760]monitor etc/user.properties change with felix FileInstaller
Remove hibernate-envers feature
Remove hibernate-envers feature itest
KARAF-2765 - Upgrade to Spring 3.2.7.RELEASE
KARAF-2767 - Update to commons-fileupload 1.3.1
Merge branch 'karaf-2.3.x' of https://git-wip-us.apache.org/repos/asf/karaf into karaf-2.3.x