Added some cross-browser support
Added fail message for IE
Better support for IE
Added a prototype Additional Notes section to sheet
Added a short markdown primer
Merge remote branch 'origin/md-notes' into site-polish
Fixed Login link redirect problem
Removed deprecated dependency
Parts of basic Mozilla Persona login system (unstable!)
Slightly more stable persona login/logout
Login done. Needs registration and error handling
Updated registration page, other minor changes
Removed login/logout pages
Removed the password columns from Users and dropped Tokens table
Merge branch 'site-polish' into development
Updated README to reflect new login procedures