Idiomatic JavaScript

Also remove executable bit from LICENSE.
scope issue for setInteractive

fixed a scope issue in the setInteractive function.
Merge pull request #20 from Ateoto/feature-cors

Added Cross Origin Resource Sharing support.
Merge pull request #22 from mvasilkov/js-idiomatic

Idiomatic JavaScript
Merge pull request #17 from Nibbler999/build

Build a non-minified version, document build process
Merge changes from master.
Latest build.