fix partial work done for changes in django-debug-toolbar-1.0.1

add trailing comma, restore uncommented state of Mongo panel
update version for django debug toolbar
fixes for verification ui discrepancies
UX-351
Added drafts for speed_change_video and seek_video event types
allow STUDENT_FILEUPLOAD_MAX_SIZE to be configured in aws.py
LMS: adding language selector to user dashboard (WIP)
wiring for language selector
Added dark lang database fixture to bok choy tests
Acceptance test for language selector

Tests language selection feature for student dashboard
LMS: simplifying language settings modal controls UI
Moved UserPreferences to common
Changed scrollbar to playback bar per Carlos
Update change log
Added change log for the Data Formats part of the guide
Merge pull request #2610 from edx/sylvia/documentation/change_log

Update change log three new lines look correct cautiously merging even though some tests failed
New instructor dashboard enrollment, data and staffing documentation
Merge pull request #2611 from edx/ahodges-documentation-LMS

Ahodges documentation lms
Fixed intermittent failure in XQueue stub unit test
i18n for self-assessment (ORA-314)

make openendedchild and open_ended_module_v1 act enough like xblocks to get xblock 18n
Added middleware for handling language changes