Abstract+ 2.2.15b

Added:

- panel with announcements + permissions
- slider + permissions
- setting nodes in forum edit
- design fixes
- rewritten nodes
- more custom look

Sale -5$, before big update!

- support for one node (100% width)
- support for one forum without category
- some little color fixes
- fixes with width of some forums

- working with XF 2.0
- package updated