[XB] Frequently Asked Questions 2.1.2

2.1.2:
Added XF 2.3 support

2.2.1:
- Added new style properties

Changelog:

• Code refactor
• Added user criteria support for categories and questions

Fix: missing page view permission

Change log:

- Fixed removing question, answer and category phrases while add-on upgrading and rebuild

It is strongly recommended to make full forum backup before upgrade

Changelog:

• Added [OzzModz] prefix to add-on title
• Added option to edit FAQ items silently and clear last edit date
• Added direct link to FAQ item
• Added permission to view "standalone" page

Fix phrase typo
Fixed "category id" value on question edit page
Added buttons to quick add question & answer to category

New feature: category icon (none, font-awesome or own image)
ACP navigation improvements
Quick phrase translation

Added ajax search
Added question sorting