Update gumby.tabs.js

this fixes nested tabs
Update README.md

Added note about using 1.0.6 modular scale if you are installing it via a gem.
Update _entypo.scss

Replace raw glyphs with character entities
Compile Sass
Compile Gumby JS
Note regarding changelog in README
Bump bower.json version number
Add doc.js using in gumby'documentation site that released from G+
Fix #1 stop event
renew to renew to enable $hybrid to be false ,avoid to make hybrid-grid