[TNL-287] Text Annotation Tool: Reply/Grouping Bug Fix
HTML Textbooks: Adding annotation css files group
Annotation Tools: Removed Public/Private Permissions Trigger
Annotation Tools: Adding Check for Grouping in MyNotes

- Grouping instance checked instead of prototype

- adding comments
Moved imports to startup.py.
Annotation Tools: Clean-up
Merge pull request #5177 from edx/usman/fix-xml-imports

Moved imports to startup.py.
Create auto cohorts when list_cohorts is called and return number of users per cohort.

TNL-186
Add support for UX reference templates in LMS
Merge pull request #5133 from edx/christina/cohorts-api

Create auto cohorts when list_cohorts is called.
Merge pull request #5176 from edx/andya/lms-ux-reference-templates

Add support for UX reference templates in LMS
Merge pull request #5178 from edx/release

Release
pass along an extra parameter to CyberSource to sepcify a callback URL if the user clicks cancel

typo
Minor updates to three problem types
Update i18n_translators_guide.rst
remove note from Annotations
Merge pull request #5182 from edx/sylvia/docs/minorfixes

Minor updates to three problem types
Add note about angle brackets to Dropdown topic
Merge pull request #5044 from edx/sylvia/docs/DOC-875

Add note about angle brackets to Dropdown topic
Ex-79 Bug Fixed. If there is no coupon code,  'Generate Registration Codes' modal dialog does not appear