added underflow_assert to pop_into
tests for variables
strcut added
Merge branch 'intertarget-code' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into intertarget-code
README: update generate documentation
remove trailing white spaces
sort imports
implement function call instruction (closes #55)

Works fine for my test-case:

$ 'main'
 \-{foo}#

 $ 'foo'
  \
    -[Hello World]o#
remove filterInstrs function

We use the default case of the pattern matching instead and generate a noop
instruction.
test cases for variables fixed
remove useless comment and dead code
add test cases for e (eof)
add test cases for e (eof)
strcut added
Merge branch 'intertarget-code' of https://github.com/SWP-Ubau-SoSe2014-Haskell/SWPSoSe14 into intertarget-code
Some test cases in ./future merged to integration-tests, redundant tests removed
Some test cases in ./future merged to integration-tests, redundant tests removed
Merge branch 'preproc-lexer'
Tests for type check instruction added
implemented -v option in test script