Fix errors with redirecting (issue #2)
This version introduces multiple enhancements:

Fixed problem with automatic redirect when no language code was given in URL

Details of additions/deletions below:
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Modified:   /BLUE_FRAMEWORK/packages/CORE/lang_class.php
            -- Added --
               _checkLanguageCode to check that language code was given and start _redirectWithLanguageCode when missing
               _redirectWithLanguageCode to redirect to page with language code, when code in URL was missing
            -- Modified --
               __construct added _setLanguage when lang_support is off
               checkLanguage part of logic moved to separate methods (_checkLanguageCode, _redirectWithLanguageCode)