HotFix trimal testing
Tox integration

Added required tox config for py27, py34 and pypy
Required environment package list for current code
and a barebones setup.py for current code
Merge branch 'tox_integration' into develop
Merge remote-tracking branch 'origin/develop' into core_seq_obj_class
WIP on developing core object class and tests for it

Generated stubs in utils for further code writing and testing
Also having a strange bug with pytest where it doesn't seem to
incorporate the pyvenv/virtualenv lib dir in the syspath when it is
called (invoking tests directly, interpreter etc all have correct
syspath just not in pytest)