Refactored hoptoad_notifier

[Joe Ferris]

Hi,

We've refactored the official hoptoad_notifier plugin so that pieces
of the code can be reused outside of a Rails application:
http://github.com/thoughtbot/hoptoad_notifier/tree/api_v2

The new version also uses the upcoming v2 API.

If you're an author of a Ruby notifier plugin, or would like to be,
you can help us by answering the following question: how would you
like to reuse the code from the official notifier?

Options we've thought of include:

* Package hoptoad_notifier as a gem that can be specified by other
notifiers
* Package hoptoad_notifier so that it's easy for other notifiers to
"vendor" the notifier code

If you have any thoughts or suggestions on the Ruby API for submitting
exceptions to Hoptoad, please let us know.

Thanks,
-Joe