Add an example of polling.
Add browserify module definition. Closes #60.
Update CHANGELOG.
Add grunt build process. Closes #65.
Use window.parent instead of window.top so that nested iframes work. Closes #59.
Update CHANGELOG.g
Fix broken graphic example.
Add missing  operators.
Update CHANGELOG.
Update README and add contributors.
Merge branch 'master' into gh-pages
Update API docs.
Add download links.