Improve generation of change string for history (CO-803)
Fix handling of default attributes from petition (CO-804)
minor css changes to beautify top login / logout / name bar (CO-779)
Merge pull request #1 from spartanicus/master

minor css changes to beautify top login / logout / name bar (CO-779)
Improve petition history record comments (CO-800)
Fix rendering of hidden attributes when viewing petition (CO-804)
Fix various errors related to petition creation (CO-807)