cleanup test module for intermediate code generation
cabal file: add llvm-general as dependency
add initial "test case" for code generation
fixed cabal dependencies
Merge branch 'intertarget-code' of github.com:SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into intertarget-code
generate String from llvm module in Backend.hs
cabal file: add mtl as dependency

Not sure if this is needed.