Merge branch 'gh-pages'
Fixed typo
Fixed typo
Fixed extend() method
Merge pull request #4 from cferdinandi/fix-extend-method

Fixed extend() method
added destroy() method
added destroy() method
Updated unit testing
Merge pull request #5 from cferdinandi/tests

added destroy() method. updated unit tests.
Added bind polyfill
Merge branch 'master' into gh-pages