Refactoring Plugins hierarchy
Implemented NAFQA-190. Improvements to CoreHacks plugin. Check extension's code pool.
Merge branch 'Refactoring' into NAFQA-184
CR-changes  NAFQA-190. Improvements to CoreHacks plugin. Check extension's code pool.
CR-changes  NAFQA-190. Improvements to CoreHacks plugin. Check extension's code pool.
Merge branch 'Release' into NAFQA-178

Conflicts:
	plugins/SecurityCheck/SecurityCheck.php