initial versions of Using edX Insights

Updates and additional stories

Enrollment, computations with Gabe

Today's work

today's work

Renamed sections to Analytics in Action

reorg, Ana story, tuning

Corrected Ana's story, finished engagement computation section

Anant's stories, engagement chart and table, country code correction per Gabe

Another Gabe edit

Anat's stories, Jennifer's edits, chgs to period for computations

Reorg from Emily's comments, title

added email link

Added browsers chapter, engagement graph

Deleting out of date images per Clinton's comment

Browser support, chg log, preface updates

Anonymized Anant story. Sylvia's edits to Browsers file

Removed Ana Bell story

Edits rec'd by email, fixes DOC-957, fixes DOC-994

Fixes DOC-952, fixes DOC-1012

things that were bothering me

Proofreading

fixed broken note

Final tweaks

I hope
Merge pull request #71 from edx/ahodges/doc/DOC-792

Ahodges/doc/doc 792