Merge pull request #1 from yagudaev/master

Improved README
Switched to a Coffee based implementation
Adds rails 4 support. Switch client-side to coffee script. Bump version since these changes are incompatible. Adds coffeescript support in generator
modified Readme, added Rails 4.x support doc
fixed an error in generator, bumped the version to 1.0.1
added send notifications through exception_notification