Add CH stuff to KB
Refactoring of some topics functions
Merge pull request #3 from Nami-Doc/patch-1

Add CH stuff to KB
Few edits regarding a change into paypal forex address and started refactor groups functions
A couple of refactoring for common classes instatiation and Links and Sudoku moved to Plugins thanks to InformPro. These plugins have still to be tested.
Fixed Sudoku and added NOINDEX to a couple of plugins
Merge pull request #1 from MightyGorgon/master

Upstream changes