Update to jquery-ajax-retry 0.2.7.
Update to jquery.blockUI 2.70.
Update jquery.imagesLoaded to 3.1.8.
Update select2 to 3.5.2.
Update jquery.transit to 0.9.12.
Merge branch 'master' of github.com:cargomedia/CM into issue-1503
Merge pull request #1503 from vogdb/issue-1503

Update trivial front-end libraries.