set creditcard last four digits for credits

Authorize.net requires the final four digits of the credit card to
process a credit. This change provides the last four digits when the
full number is null. This should only happen on credits.
Edit functions to DetailTaxCategory/EditAndSave test to TaxCategoryTest
Getting started addressing the comments
Got Test working correctly
Merge remote-tracking branch 'origin/feature-taxcategoryfunctionaltests-ds-continuation' into feature-taxcategoryfunctionaltests
Updates for David to continue working
Not at all finished
Functional Test Help
Updates to how tax tests can work
Created a function to test ability to create tax category rate
Merge remote-tracking branch 'origin/develop' into feature-taxcategoryfunctionaltests
Commit.  Major work done, but not complete.  Need to merge in develop
Merge remote-tracking branch 'origin/develop' into feature-taxcategoryfunctionaltests
fixing typo on promotion bug where reward variable should have been
promotionReward. Reinforcing fix with rectangular function and unit test
Merge branch 'develop' of https://github.com/ten24/Slatwall into feature-promotionBug
Updated Version 3.3.014.039
Fixed some locator issues.  Still needs work
Merge remote-tracking branch 'origin/develop' into feature-taxcategoryfunctionaltests
Added ID's for listing action buttons
Updated Version 3.3.014.040