[*] Theme tweaker description
Merge branch 's-theme-tweaker' of github.com:litecommerce/core into s-theme-tweaker
[*] General settings/Envoronment info page: Added info about currently used translation driver (gettext or database)
Merge branch 's-theme-tweaker' into 1.1.x

Conflicts:
	src/classes/XLite/Module/XC/ThemeTweaker/Main.php
[*] External library Codemirror (ThemeTweaker module) added to the excluding patterns for headers checking procedure.
Merge branch '1.1.x' into master-dev