Bug fixes in Beagle* unit tests and BeagleComposite class.
Bug fixes in LdaCgs*
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
migrating sim -> dist
fixing location of BaseModel
fixing all beagle tests - commenting out multi
commenting TfMulti for now
adding sanity checks to spatial tests
fixing spatial tests
Merge branch 'tests' of github.com:inpho/vsm into tests

Conflicts:
	unit_tests/tests_beaglecomposite.py