Hide issue custom fields when disabling issue tracking on new project.
Don't update issues nor log time when importing old changesets (#4823).
Pass the commit keyword used to update the issue to the plugin hook.
Support for multiple issue update keywords/rules in commit messages (#4911).
German translation updated by Daniel Felix (#15028)
remove trailing white-spaces from config/locales/it.yml
Traditional Chinese translation updated by ChunChang Lo (#15022)
Test broken by r12192 (#2199).
Allows user to clear dates and text fields when bulk editing issues (#2199).
Merged r12189 from trunk to 2.3-stable (#13632)
pdf: fix empty page attached when exporting.
Contributed by Jun NAITOH.
