Remove the reference to bootstrap in the docs, since it's now it's own
project.
Add updater to streamline the gem update process
Angular no longer includes bootstrap files
Remove execute bit
Merge pull request #25 from NickClark/updater

Automate gem updating
Merge pull request #24 from NickClark/bootstrap-doc-fix

Bootstrap doc fix
- Add MIT license to gemspec
Add forgotten dev dependency. Needed for updater to work.