changable AST from lexer
moved conversion code to lexer and fixed a few bugs
added '@' and fixed a few calls
lexer fix
Lexer fixes
spelling error fixed in name
small fix in toAST
splitfunctions: bug fixed (head [])
Christian H. added to AUTHORS-file

on his behalf
code for toAST is shorter and easier to understand now
Merge branch 'testing'
Main.hs restored
Main.hs restored
Bug in Main.hs fixed und rail-examples/hello-world.rail fixed
Merge branch 'master' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into gui
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