[Issue#426] Add control to clear groups of selected elements
ignore Vim swap files
Add assets for logos, etc.
include reveal.js and mozilla theme
Add outline
Add instructions
Lots of changes
first part of stanford talk (some slides unfinished)
Merge branch 'master' of github.com:mozilla/lightbeam into mmc-slides
Typo
Merge pull request #502 from mozilla/mmc-slides

Mmc slides
updated "how tracking works" slides
clean up intro slides
Add subtitle and our names
Move images
more on cookies, add links, cleanup
Create gh-pages branch via GitHub
Delete unused file
Merge branch 'gh-pages' of github.com:mozilla/lightbeam
Switch to sdk/ui/button instead of sdk/widget