-browser: remove stale unused onLoad function arguments
-browser: move xhr.send to a setTimeout(..., 0) - fixes 'abort ensures that no callbacks, except finished with Error, are called when invoked immediately' for IE 7
abortSpec: report callback name in Error
abortSpec: remove stale debugging anchor from url
dummyserver.js: implement OPTIONS, HEAD, GET, DELETE, POST, PUT methods
test: add methodSpec
test: remove basicSpec, add callingSpec