Added a proper search filter to `OR` the summary and description fields.
Moved the update ticket form into its own view.
Ticket relationship permissions.
Ticket relationships database table.
Added `Related tickets` field to new ticket form.
Added ticket relationship model.
Create related ticket relationship when creating new ticket.
List related tickets on view ticket page.
Added related tickets field to update ticket form.
Bump version to 3.4
The `_dev` directory has been split off into its own repository.
Add related ticket permission locale strings.
Updated the related ticket methods to omit tickets with relations to the current ticket.
Only list dependant tickets in the related tickets update ticket form field.
Related tickets can now be added and removed from existing tickets.
Fixed an issue with custom fields.
Custom field change history should now show the correct old value.
Remove commented out code from ticket model.
Updated the Markdown plugin.
Merge remote-tracking branch 'main/master'