adds wikka-refactored.php
stubs out WikkaWebService and unit test; updates wikka-refactored.php comments
renames WikkaWebServiceTest test class
stubs out WikkaWebService constructor
reworks basic wikka-refactored workflow; adds errors module; updates WikkaWebServiceTest
adds requirements verification, multi-config loading, and error reporting setup to WikkaWebService
adds wikka functions module to eventually replace wikka/helpers.php