ESC-27: Update "Trouble logging in?" link to point to relevant Ember Support article section
ESC-29: Change the url of where the "help tab" points
CNS-732: Modify Course Enrollment for STU
Updated product name in message branding to HotChalk Ember
CNS-734: Update Ember to auto-publish courses on the course start date
Bumped version string to 1.3-hf2 for Sandbox build.
Merge branch 'hotfix/1.3-hf2'