Added morphology parser package
reverted HHid19 from 'ComponentClassStub' to 'ComponentClass' as it was inadvertantly changed in a global replace
added __repr__ methods to all morphology classes and changed morph.segments/classifications to dictionaries instead of lists
I am not sure what this typechange (came after the specs were built) is
about but hopefully it is harmless
Merge branch 'master' of https://github.com/tclose/nineml.git

Conflicts:
	lib9ml/python/nineml/extensions/morphology.py