Adapted to almost login successfully on new discovery website
`ConfigParser`'s `.get` method doesn't take defaults...
Adjust form used, and include browser data in initial login, and leave out now-unneccessary reposting
Add simple error detection, and close the original file-like object for fun
Reworked this so it actually downloads the initial history view as ofx, using the new site. Also, logoff!
Better handling of logging on as a read-only user (which can't see the real account name)