Implemented GetOrdersByDateRange
Cleaned up pep errors
Style fixing
Implemented GetModifiedOrders
Implemented ChangeApproverEmail
Implemented reissue
Merge pull request #8 from kbishop711/master

Implemented GetOrdersByDateRange, GetModifiedOrders, Reissue, and ChangeApproverEmail
Added GetQuickApproverList
Fix overlapping attribute names
Merge pull request #9 from pglass/master

Added GetQuickApproverList
Merge remote-tracking branch 'upstream/master' into validateorderparams