Merge pull request #103 from instructure/jsonapi-support

added jsonapi format support
implement the jsonAPIKey version of the method

also keeps the version declared in the .h file present
Merge pull request #104 from derrh/master

implement the jsonAPIKey version of the method
Merge pull request #105 from instructure/jsonapi-support

updated the publish api endpoint
Transform courseID to string
Merge pull request #107 from derrh/master

convert courseID to string on CKISection