modifying beaglecomposite test
fixing tests_corpus
fixing tests_core and moving apart to structarr and split
tests_corpus_util.py
fixing imports, sentence on coll_tokenize and dir_tokenize broken
correcting context_type
migrating sim -> dist
fixing location of BaseModel
Resolving merge conflicts in tfviewer.
Resolving merge conflicts in tests_labeleddata
Merge branch 'tests' of github.com:inpho/vsm into tests

Conflicts:
	unit_tests/tests_beaglecomposite.py
adding travis-ci support
adding nosetests
adding test dependencies