Convert to Bundler for dependency management.
Add Timecop based time tests.
Add throttling per-minute derived from Hourly throttling.
Properly scope app() method within describe block, fixes horrible race condition where this is over-ridden by each test you load, causing all kinds of weird failures if you run all specs as a group.
Update README for new Minute strategy.
Add an optional callback to the Limiter base strategy.  This callback is fired whenever a rate limit is exceeded, to allow something like logging or per-app handling of rate limits.
fix README.md
Merge pull request #1 from ursm/patch-1

fix README.md
Merge pull request #3 from wpeterson/master

Added per-minute throttling and a rate-limit callback.