Tests/cleanup VersionsController.
Test class cleanup.
Adds functional tests for repository creation/update.
Rails3: helper: html_safe for "format_activity_description" method
Rails3: view: html_safe for parents and children revisions
code layout clean up application helper "link_to_revision" method
Merged r8030 from trunk.
Do not show warnings for disabled scm.
Makes the link in an issue update notification point to the change (#9690).
Routes cleanup.
