Add pagination to asset retrieval
and push sorting down to the query
Use HTTP header for comments service auth

Previously, authentication was done using a URL parameter, which would
appear in various logs. Now, authentication is done more appropriately
with an HTTP header. Note that this requires cs_comments_service commit
cf39aabdd160176ebf206ca19d3ee030161a0b47 or later.
Test 100 assets w/ pagination
Add EmptyDataRawDescriptor.
fix instructor dashboard grade export for specific assignment
add comment - instructor dashboard grades fix
disable tender

because their Javascript breaks our page
fix for missing sass variable for LTI
Modify export_to_xml to take an optional contentstore and work with xml courses
Add command to dump the course_ids available to the LMS
Add command to dump the structure of a course as a JSON
Add command to dump a course to stdout as a tar.gz file
Delete dump_course_structure django command on cms

Replaced by dump_course_structure on lms
Merge pull request #1346 from edx/db/disable-tender

disable tender
Merge pull request #1347 from edx/frances/fix/lti-sass-variable

fix for missing sass variable for LTI
Gid rid of toast message.
Remove commented out code.
Move sock JS code into its own file.
Merge pull request #1327 from edx/christina/kill-toast

Don't need toast message.
Remove unreferenced code.