updated the cursors, avatar positioning, pulse
Adjust peerconnection instantiation a little.  Fixes nothing
Fix #184, reset share link input field if it gets changed
Merge branch 'master' of github.com:mozilla/towtruck
updated the "Welcome" screen
Do some of #179 - add a modal that is displayed just the first time TowTruck is started.
tried to fix cursors, looks different on browsers
merge
Merge branch 'master' of github.com:mozilla/towtruck
Squashed 'app/http/public/towtruck/libs/Guider-JS/' content from commit bad6a35

git-subtree-dir: app/http/public/towtruck/libs/Guider-JS
git-subtree-split: bad6a35cec94c31772e56a646dfb70078d4bcd0a
Merge commit 'bbc84a80624bb99f3071e8f443c9ad183f52e04e' as 'app/http/public/towtruck/libs/Guider-JS'
Fix shareId problem when activating TowTruck normally
updated the How To Install section #216
Setup Guiders-JS to support #121 and #122.  Add a help button to start the walkthrough.  In element-finder.js, ignore the guider element.  Rename hideWindow to ui.hideWindow (i.e., make public).
Merge branch 'master' of github.com:mozilla/towtruck
updated the site - How it Works
Merge branch 'master' of github.com:mozilla/towtruck into develop