Merge pull request #150 from derrh/master

Prevent the cascading failed masquerade of death
Added CKISubmission and CKIRubricAssessment support to CanvasKit
Added CKISubmission and CKIRubricAssessment support to CanvasKit
Merge pull request #151 from derrh/master

updated podspec for new version
Added the pod spec changes after seeing Derrick's
Merge branch 'bpluim-CKISubmissionRecord'

Conflicts:
	CanvasKit.podspec
	CanvasKit/Models/CKISubmissions/CKISubmission.m
Updating AFNetworking
Merge pull request #154 from bpluim/master

Added CKISubmission and CKIRubricAssessment support to CanvasKit
Parse enrollment state to CKIEnrollment
Merge pull request #155 from nlambson/master

Parse enrollment state to CKIEnrollment
updates to support viewing making comments on submissions

as well as submitting.