Fixes DOC-1194, spurious speed field for events
Merge pull request #6 from edx/ahodges/doc/DOC1194

Fixes DOC-1194, spurious speed field for events
Update math formatting topic
Merge pull request #2 from edx/sylvia/dos/doc-1107

Update SI affix list in SFD_mathformatting.rst
Content Experiments Unit Only Warning

Also includes reorg for reuse of content experiment info between CA and
OLX guides
Merge pull request #9 from edx/markhoeber-doc1058

Content Experiments Unit Only Warning
Fixes DOC-1220, add professional mode

Date to come from @dianahuang
Includes date

@dianakhuang , @catong , @mhoeber , @srpearce
Add video player student-facing documentation
Merge pull request #10 from edx/sylvia/docs/DOC-732

Draft of video student-facing documentation
Add download information to video SFD topic
Merge pull request #13 from edx/sylvia/docs/videoupdate

Add download information to video SFD topic
Fix formatting in video topic
Merge pull request #14 from edx/sylvia/docs/vidupdate

Fix formatting in video topic
Added note about blank mode, date format
Fixes DOC-1146, incorrect Show Answer description

@adampalay , @mhoeber @catong , @srpearce
Merge pull request #12 from edx/ahodges/DOC1146

Fixes DOC-1146, incorrect Show Answer description
Per Olga removed note on blank strings
@mhoeber please verify
Add calculator info; update CA student info to point to student guide