README.md: update readme with warning about Leap.loop inside background.js of Chrome extensions
Merge pull request #12 from gsilk/master

Add warning to README.md
fix whitespace problems
Merge pull request #13 from gsilk/master

Fix whitespace problems in /lib
Return default scaling factor if frame is invalid
regenerate minified js
Merge pull request #14 from alexhung/master

Fix scaleFactor() not return default scale if invalid
cleanup ws
Merge branch 'master' of https://github.com/leapmotion/leapjs