Make release table by PR, instead of by commit
Major refactoring based on Cale's branch approach
Removed unused function
removed unused import
Create edx remote if it doesn't exist
Include author in table
IGNORED_EMAILS is no longer used
BLD-722: CodeResponse i18n.
BLD-714: CustomResponse i18n.
Warn and continue for missing merge commits
Nicer error messaging
Changes for Help Modal to work on Stanford Site

- moved zendesk endpoint to new condition
- some help modal styling
Field name is 'username' not 'user'
auto-create OAuth token for Github API
memoized function
Removed message about non-affiliated open source contributors
IGNORABLE_404_ENDS is wrong and unused

This setting is only used if SEND_BROKEN_LINK_EMAILS is true, which it
is not, and it is deprecated, and this value for it is wrong, since it
is used as an iterable.
Convert lettuce video tests specifically using youtube stub
Merge pull request #3492 from edx/ammar/bok-choy-youtube-stub-video-tests

Convert lettuce video tests specifically using youtube stub
Fixed cheatsheet for open ended editor.
STUD-1583