art mode

Signed-off-by: Kristin Knorr <tini@unclouded.de>
smart mode adjusted, but some things not working well yet
smart mode improvement
numblock for drawing rails
Implemented clearing of selection
Implemented clearing of selection
Merge branch 'NewEditor' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into NewEditor
change checkbox handling
change mode+highlight handling in gui
Bugfix for selection feature
dirty hack to work around endless loops in highlighting
Merge branch 'NewEditor' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into NewEditor
wrong order in fix for endless loops
stupid bug on equal in interpreter fixed
Fixed crash when pasting clipboard
added highlighting of lambda
Merge branch 'NewEditor' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into NewEditor
added special backspace to smartmode
Merge branch 'NewEditor' of github.com:SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into NewEditor
Merge branch 'NewEditor'

Conflicts:
	src/RailEditor/Interpreter.hs
	src/RailEditor/ToolBar.hs