Fix Pep8 errors
Added allowed_request to PasswordResetRateThrottle so OPTIONS requests
aren't rate limited

Added tests
Added sub test

now only rate limits post
Fix typo
remove sub test
Dry out rate limit tests
remove white space
Removed else from PasswordResetRateThrottle
Moved check_post_rate_limit inside TestPasswordResetEmail
Rename method
Merge pull request #71 from incuna/options-rate-delimit

OPTIONS requests shouldn't be rate limited