Integrate Impressive Changes#9

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sibblegp wants to merge 15 commits intosibblegp:masterfrom

Commits on Jan 5, 2014

Commits on Jan 6, 2014

Made order_id more consistant and made models store their original data
sdobz
committed

Commits on Jan 8, 2014

Fixed bug where qty was passed as data not a parameter
sdobz
committed

Commits on Feb 14, 2014

Commits on Feb 15, 2014

Commits on Mar 13, 2014

Removed support for old api_key sustem, added support for new api_key + api_secret HMAC authentication
sdobz
committed