Fixed some import paths. added core read and create functions.
Merge branch 'master' of https://github.com/UCHIC/ODM2

Conflicts:
	api/ODM2/Core/model.py
	api/ODM2/Core/services/createCore.py
	api/ODM2/SamplingFeatures/services/createSamplingFeatures.py
	api/ODM2/SamplingFeatures/services/deleteSamplingFeatures.py
	api/ODM2/SamplingFeatures/services/readSamplingFeatures.py
	api/ODM2/SamplingFeatures/services/updateSamplingFeatures.py