Clarify readme
Remove duration reference from Shade example
Specify Mobify's Velocity vs core Velocity
Clarify how to use `pinny__body-wrapper`
Steve Code Review
Merge branch '1.0-alpha' of github.com:mobify/pinny into a11y

Conflicts:
	dist/pinny.js
	dist/pinny.min.js
	examples/index.html
	src/js/pinny.js