Similar threads v7.5 changes: Now works with XF 2.1 and 2.2. Added support for iOS pasting title.
Similar threads v7.3 changes: Updated finder code to be more compatible with other add-ons.
Similar threads v7.2 changes: Updated templates to fix issues with markup validation.
Similar threads v7.1 changes: When creating a new thread, the similar threads dropdown will stay open. Added a cancel button to allow closing the similar threads dropdown during thread creation.
Similar threads v7.0 changes: Fixed issue with thread title having "|" character.
Similar threads v6.9 changes: Fixed issue with thread title having multiple "+" characters.
Similar threads v6.8 changes: Added unicode support to regex.
Similar threads v6.7 changes: Fixed issue with non language characters causing regexp to fail.
Similar threads v6.6 changes: Fixed issue with closing similar threads results when message body gets focus.
Similar threads v6.5 changes: Removed Stop characters field from options page.
