Implemented test for GetOrdersByDateRange
Added a newline
Implemented GetOrderByPartnerId test and cleaned up copy-pasta
Added functional tests for ValidateOrderParameters
Added a functional test for reissue

The test does the following:
    1. Create a new order
    2. Force approval of the order
    3. Do the reissue and verify the response
    4. Query the order to verify the cert status is PENDING_REISSUE

Unfortunately, forcing approval seems to take between 5 and 15
    minutes for the API to complete.
Implemented test for GetOrdersByDateRange
Implemented GetOrderByPartnerId test and cleaned up copy-pasta
Rebase
Implemented test for GetOrdersByDateRange
Implemented GetOrderByPartnerId test and cleaned up copy-pasta
Added functional tests for ValidateOrderParameters
Implemented test for GetOrdersByDateRange
Rebase
Rebase2
Implemented modify_order test
Rebase 3
Added tests for getmodifiedorders and getquickapproverlist
Implemented test for ChangeApproverEmail
Merge pull request #17 from kbishop711/master

Implemented tests for GetOrdersByDateRange, GetOrdersByPartnerOrderId, ModifyOrder, GetModifiedOrders, GetQuickApproverList, and ChangeApproverEmail.