example for a colored textarea

This area consists of a bunch of modified colored entries
new gtk main.hs still missing the abbility to open, save files and quit.
Merge branch 'gui' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into gui
Added the menu File and Help. The filedialogs working fine.
TODO:
-Link to text-entry content(I am currently using a stub)
-Fix the problem with the keyPressedEvent https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14/issues/63
Solved the problem with event-handling it works pretty fine.
Refactored the keyEventHandler code (to smaller indentation)
Fixed some hlint suggestions and set the default position of the window to the center of screen.
tried to implement entry
created TextArea with first input-mode

It is possible to start with the blocked issues
Modularization of the code

created:
    Main - only the initialisation of the main Window
    Menu - the menu-code
    TextArea - the code related to the textarea
added coloring and clear function
dynamically textarea resizing
Deleted gui.hs
Merge branch 'gui'
Merge branch 'master' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14