Merge pull request #2 from teppeis/espowerify

Espowerify
Update README.md
Add RequireJS testing
Use espower instead of espowerify
install bower before script in travis
clean up code
Merge pull request #3 from teppeis/requirejs

Add RequireJS testing
Bump v1.0.4
Use container-based travis
Merge pull request #4 from teppeis/travis-container

Use container-based travis
Add browserstack testing
clean up test code
Merge pull request #5 from teppeis/browserstack

Add Browserstack testing
Update README.md
Update README.md
saucelabs
Fix karma.conf.js