More custom blocks were added to the custom.html
Test that check boxes offset was fixed
small fix in the wow-spec.coffee
tests for the new custom boxes were added
Simple test that show how second instance of the WOW.js change the config property of the first WOW.js' instance
Bug of the config mutation was fixed
extend mutates the options object, not the defaults
use existentional operator
Merge branch 'experimental'

Conflicts:
	dist/wow.min.js
Merge branch 'master' into lgrandicelli

Conflicts:
	dist/wow.js
	dist/wow.min.js
	src/wow.coffee