replace text in templates by translation markers (issue #53)
This version introduces multiple enhancements:

changed part of text in framework to markers, to use translations and display correct text for given language

Details of additions/deletions below:
--------------------------------------------------------------

Added:      /BLUE_FRAMEWORK/modules/main/lang/main_en-GB.php
            -- Added --
               added translation file to module main

Added:      /BLUE_FRAMEWORK/modules/main/lang/main_pl-PL.php
            -- Added --
               added translation file to module main

Added:      /BLUE_FRAMEWORK/modules/mod3/lang/mod3_en-GB.php
            -- Added --
               added translation file to module main

Added:      /BLUE_FRAMEWORK/modules/mod3/lang/mod3_pl-PL.php
            -- Added --
               added translation file to module main

Modified:   /BLUE_FRAMEWORK/elements/layouts/404.html
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/elements/layouts/ext.html
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/elements/layouts/index.html
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/elements/js/js1.js
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/modules/mod2/layouts/lay.html
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/modules/main/layouts/sitemap.html
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/elements/layouts/strona2.html
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/modules/mod3/layouts/layout1.html
            -- Modified --
               text replaced by translation markers

Modified:   /BLUE_FRAMEWORK/modules/mod2/lang/mod2_en-GB.php
            -- Added --
               missing translations

Modified:   /BLUE_FRAMEWORK/modules/mod2/lang/mod2_pl-PL.php
            -- Added --
               missing translations

Modified:   /BLUE_FRAMEWORK/cfg/lang/core_en-GB.php
            -- Added --
               missing translations

Modified:   /BLUE_FRAMEWORK/cfg/lang/core_en-GB.php
            -- Added --
               missing translations

Modified:   /BLUE_FRAMEWORK/modules/mod2/mod2.php
            -- Added --
               start translation
               added missing version number

Modified:   /BLUE_FRAMEWORK/modules/mod3/mod3.php
            -- Added --
               start translation