Merge pull request #4 from mhehm/master

XMAP K2 Extension - URL fix
Merge pull request #5 from mhehm/master

prepare for next release (2.3.3)
Merge pull request #6 from mhehm/master

Fix for change priority and frequency in joomla 3.
Renaming ru-RU language folder
Merge pull request #2 from guilleva/master

Merge master