tox ini file to test several python versions at once
working httpretty tests for py3.2
give up on 3.0 and 3.1 support - even the docs don't support it
updated README for tox and httpretty support
readded testdep packages to make sure they don't depend on tox
Merged in tox_tests (pull request #50)

Test multiple versions with tox, fixed httpretty tests for 3.2
expose stormpath error to users
Merged in expose_errors (pull request #51)

expose stormpath error to users
fix account test fail caused by exposing stormpath error to users
stormpath url parameters are case insensitive, we don't need no create_account
removed unused import
code standards improvement
fixes key validation error because the url has to have sorted parameters for stormpath digest to work
Merged in misc_fixes (pull request #52)

removed create_account and fixed auth bug
Merge remote-tracking branch 'bitbucket/development' into development