update confwiz to include account creation ui

update confwiz to include account creation ui

this changes the confwiz so that hitting the 'create account' button, rather than
opening a webbrowser to the register page, instead provides a simple account creation
ui directly, along with changes to the backend (native_client.php) to support that.

also added a 'connecting...' message so the user sees a response when they hit
login or create account, since the getBasedir call can sometimes take up to ~5min
(which is unacceptable for a user product, but this at least somewhat ameliorates
the issue of the ui locking up and not giving the user any feedback while it's
happening)