Change default framework view (issue #17)

This version introduces multiple enhancements:

rebuild base index template ans some module templates
also some changes in bootstrap_dark styles

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

Modified:   /BLUE_FRAMEWORK/elements/css/bootstrap_dark.css
            -- Updated --
                changed some colors

Modified:   /BLUE_FRAMEWORK/elements/layouts/index.html
            -- Updated --
                rebuild structure to handle bootstrap_dark

Modified:   /BLUE_FRAMEWORK/modules/modul1/layouts/layout1.html
            -- Updated --
                rebuild structure to handle bootstrap_dark

Modified:   /BLUE_FRAMEWORK/modules/mod2/layouts/lay.html
            -- Updated --
                rebuild structure to handle bootstrap_dark