Integration tests: some ideas added
Merge branch 'intertarget-code'
changes needed by intermediate
Merge branch 'master' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14
Issue #32: added headers to Main.hs, ErrorHandling.hs and InterfaceDT.hs
#32: Header added to SemanticalAnalysis.hs
#32: Main.hs added comments, SemanticalAnalysis.hs added header
SemAna: merge conflict resolved
#32: Header added to CodeOptimization.hs
Delete hello.llvm
Delete helloW.ast
#32: Header added
Bugfix: Preprocessor now returns an error iff there is no line starting with a dollar sign
Integration tests: io-files added and updated folders
Removed test cases from preprocessor until I come up with an idea how to do negative testing in HUnit when the expected behavior is throwing an error
Merge branch 'master' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14
Test travis with ppa.
Add -y option to apt-add-repository.
Use haskell-gtk from ppa.
Revert "Use haskell-gtk from ppa."

This reverts commit 5de33c5177074fb0ab08f3fccc5945b37a05098e.