Adds wiki comments length validation (#3308).
Merged r2718 from trunk (#3291).
Same as fix as r2705 from Trac wiki pages attachments (#3291).
Display links to users on project members view.
Clear member_roles when deleting project members.
Removes hardcoded table names in Repository#clear_changesets.
Merged r2713 from trunk. #3086
Link projects and users in the issue list.
#3086
Link the project name in simple issue lists.
#3085
Adds group folding on issue list (#2679).
