enable pos_IO test
further integration tests enabled
fixed some tests
movement fixes
making some integration tests work
fixed test cases
added error messages to io-files of negative test cases
even more tests working
Merge branch 'preproc-lexer' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into preproc-lexer

Conflicts:
	integration-tests/neg_invalidMove4.io
fixed every known test case for lexer
closes remainder issue #45 and fixes issue #40
Merge branch 'preproc-lexer'
Started fixing hlint errors for RailEditor
Merge branch 'master' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14
Test cases restored and modified
Merge branch 'master' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14
remainder tests enabled and adjusted; forgot to commit symlinks
new integration tests added identifying several bugs in math
Integration-Tests: type mismatches for arithmetic operations
Integration-Tests: modified io-files (syntax corrected)