Add-ons [FF] Classifieds Enhancements (+ Fixes) 1.1.4

For some reason, the advert counts in the categories will sometimes just go totally wrong.

I thought this was due to incorrectly expiring adverts in the default crons, but it just happened again to me.

In the interim until I have time to look for the real problem, I've added a new option in the admin panel which will automatically rebuild the counts every hour.

• New widget "[FF] Classifieds Enhancements: Listing Filter" to show the filter drop down as a widget instead. Context sensitive (so if you go into a category, it will adjust to only filter the options available inside) - @ichpen
• Refactored the prefix filter into a repository.
• Fixed: When the expiry cron runs, the filter counts will also be updated.

• FIX: Errors when deleting a category.

No other issues were reported about the renewing of ads, so I've remove the beta status of this.