[UNITYSDK-181] Admin / create_user objectified and test case implemented.
[UNITYSDK-182] Admin / delete_player objectified and test case implemented.
[UNITYSDK-183] Admin / increment_stat objectified and test case implemented.
[UNITYSDK-184] Admin / login_user objectified and test case implemented.
[UNITYSDK-185] Admin / set_custom objectified and test case implemented.
[UNITYSDK-188] Admin / set objectified and test case implemented.
Moving PlayerAttribute parsing code directly into the DomainObject model.
[UNITYSDK-186] Admin / view_player objectified and test case implemented.
[UNITYSDK-27 fixup] Fix so that generated files use System.Xml rather than IXML.