core-4736 fix error messages for pipelines
CORE-4730: Updated copyright and NSF strings to SafeHtml for Belphegor upgrade as well as added some other strings for tab titles
CORE-4730: Added belphegor externalized strings
CORE-4730: Update of style and strings for Belphegor upgrade to GXT
3.0.6
CORE-4730
core-4785 fix delete msg.
core-4766 update error msg for app name.
Merge branch 'master' into STABLE