redirect with language code (issue #86)
This version introduces multiple enhancements:

Fixed redirecting to page with language code, if some page was given without language code

Details of additions/deletions below:
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Modified:   /BLUE_FRAMEWORK/packages/CORE/lang_class.php
            -- Modified --
               checkLanguage added remove first element from $get array
               _checkLanguageCode removed instructions to remove first element from get array