Merge pull request #106 from derrh/master

Making section's courseID a string
Merge pull request #108 from instructure/jsonapi-support

Jsonapi support
Merge pull request #110 from instructure/jsonapi-support

Fetching Poll by ID
Merge pull request #111 from instructure/jsonapi-support

fix for enrollment crash when fetching course by id
Merge pull request #113 from instructure/jsonapi-support

Adding an additional check on 401 errors before forcing a logout.
Merge pull request #114 from instructure/jsonapi-support

added property to the poll session
Merge pull request #115 from instructure/jsonapi-support

added some poll submission properties and poll session properties
added jsonapi support for updating model objects