`src/script/remote.js`: Major overhaul to init / login flow. Now seamlessly supports the Phonegap "Facebook Connect" plugin (note: only tested in iOS Simulator). Note that the `_remote` object is used to keep "private" functions organized, but that it is otherwise not used as an object (which is slightly confusing and perhaps not ideal). Using custom events to indicate status to the "outside world" (in this case `app.jsx`).

`src/script/app.jsx`: Some changes to support new `remote` init / login flow. Using custom events to respond to `remote`.

`src/index.html`: add protocol to FB JS SDK embed code (to support serving from the file protocol in Cordova).

`src/style/app-mod.scss`: Use relative paths (for Cordova). Minor: replaced some tabs with spaces.

`src/script/screen/welcome.jsx`: Minor: cleaner approach to handling login button press.