Version 0.2.0 (2014-04-15)
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Fixed Pycontracts dependency (#63)
Made unrequired tracker method arguments optional (#40)
Linked the Technical Docs and Setup Guide images to the appropriate pages (#60)
Changed API to no longer specify a collector URL option (#57) 
Removed the "URL from Cloudfront subdomain" option (#56)
Started sending event vendor parameter through on querystring (#55)
Changed track screen view to use an unstructured event (#53)
Added ability to name individual instances of the Python Tracker (#52)
Validated GET payload in all integration tests (#33)
Added support for Python 2.7 (#42)
Fixed versions in requirements.txt (#47)
Added platform and tracker version to payload (#50)
Changed tracker version prefix from "python-" to "py-" (#51)

Version 0.1.0 (2014-28-03)
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Initial release
