Added shell for performance test

Grabbing basic route from python

Discovered that writing to file is also a bottleneck

Added in fetching to get the other side of the coin

Took a shot at performance but broke tests =(

Repaired tests but seemed to increase fetching time

Reduced fetching by adding in caching

Removed lazy write out but tests are failing =(

Patched 1 of 2 failing tests by adding rewind functionality to all items

Repaired manual from adjusting to per-test testing

Fixed performance scripts to only run when from the CLI

Added dirty check and now everything is wicked fast with allthethings passing =)

Never mind -- things are still borked =(

Updating tests to always work on a clean disk

Tests still failing on old files =/

Added back responses.yaml after mistake last night

Moved back is_dirty check and test still passing =D

Began on cassette performance test

Added test for cassette to generate file in under 2 seconds

Finished up regression test for feetching from a cassette

Removed fab performance task

Removed performance cleanup from fabfile

Removed unnecessary clean from fabfile

Relocated rewind to make it slightly smarter

Minor cleanup for typos and such

Went down wonky path for hashing/saving

Moved to better data structure for storing hash and data

All files failing due to some strange ordering issue

Adding in hash checking as per Charles' request

DRYed up cache save mechanism
Merge pull request #3 from uber/dev/performance.tests

Added performance tests and significantly improved performance