Added the ability to retrieve and update stored payment information.
Removed pprint call.
Made update function more consistent with other parts of the library while retaining flexibility.
Switched lazy card info acquistion to explicit function. Some cleanup for pythonicism.
Added tests for new Customer API funcs.
Added more tests, fixed spelling error, removed extraneous import.
Made number an argument to remove SOAP exposure to the higher level functions. Cast results to strings to avoid passing around SOAPy objects.
Removed unneeded import.
Fixed a bug where a customer profile that had multiple payments wouldn't be able to look up any pauments other than the first one.
Removed unneeded attribute from client, added a comment.
Merge pull request #9 from USGM/master

Added Email field, allowed retrieval of card data