Fixed path in iotools_test.py
Fixed paths in iotools_test.py and cleaned getdiff test
Fixed path to Beta-Beat.src in __init__.py's
Fixed path to Beta-Beat.src in __init__.py's again. Added before the parent dir of BB.src...
CHanged visibility to protected for helpers in GetLLM and getsuper

Additionly refactored getsuper: replaced options calls to static class
_InputData