bump underscore dependency to 1.4.2 to handle nullish arguments
use `exports` instead of just Backbone object for both commonjs and AMD
adjustments for 0.8.0 release
stylistic cleanup
return `this` from `stickit` for easier chaining in `render`
add .travis.yml file
add headless test runner with phantomjs
Merge pull request #229 from pradius-fut/master

Bind classes with 'classes' array
Added support for return select options with promises.
Checks for .then function as all promises including jQuery deffered are 'thenable'