Add display of actions done with metadata aquired from the SVN repo.
Url: /geonetwork/srv/eng/versioning.log
fix problems reported by findbugs
fix a small error, where the change of metadata were not shown when status and privileges were changed in the same revision
add back some css that was removed by accident in the previous commit
Merge branch 'MetadataVersioningLogDevelop' of git://github.com/kristjanr/core-geonetwork into kristjanr-MetadataVersioningLogDevelop

Some changes:
* move the guiservices from core module to services
* change the Ext grid to use http://localhost:8080/geonetwork/srv/eng/versioning.logdata@json (and remove the useless xmlToJson.xsl)

Conflicts:
	web/src/main/webapp/WEB-INF/config.xml
Add missing operation labels in getAdminOper operation.