LMS: add CSRF token to register form
Add Neurolit to AUTHORS file
Changed create_enrollment to create_or_update_enrollment
all CourseEnrollment modifications route through create_or_update
purchased_callback now uses the change_mode method
Response to CR
response to CR
Small fix
Assign a score of 0 to tasks with no attempts
Use correct set of OpenEndedChild states
Merge pull request #1686 from cpennington/hotfix-max-empty-sequence

Assign a score of 0 to tasks with no attempts
BLD-193: Add template for checkboxes to studio.
allow override for STATIC_URL
Stop video skipping links from showing up when not needed and address the issue of skip links for multiple videos.

Fixes BLD-521
adding override for GITHUB_REPO_ROOT

This is the base directory for course data
Merge pull request #1690 from edx/jarv/static-url

allow override for STATIC_URL
resolving merge conflicts
Merge pull request #1691 from edx/jarv/github-repo-root

adding override for GITHUB_REPO_ROOT
Merge pull request #1683 from edx/giulio/fix-video-links

Stop video skipping links from showing up when not needed and address the issue of skip links for multiple videos.
Merge pull request #1688 from edx/anton/add-template-checkboxes

Add template for checkboxes to studio.