Fix bug 1057286: Split file attachments from wiki into a separate application.
fix bug 1057286 - fix attachments migrations' db_table value
fix bug 797845 - Disable save button if no edits have been made
fix bug 1057286 - make migration 0004 work for new and existing environments
Merge pull request #2731 from darkwing/new-issue-797845

fix bug 797845 - Disable save button if no edits have been made
Merge pull request #2732 from groovecoder/attachments-app-1057286

fix bug 1057286 - split file attachments from wiki into a separate application
bug 1057286 - custom chief logic for attachments migrations cleanup
Merge pull request #2737 from groovecoder/attachments-app-1057286

bug 1057286 - custom chief logic for attachments migrations cleanup
Fix bug 1065845: Do not hard-code GA tracking ID