- Move loading .js scripts from <head> to <body> for faster rendering
- Enable back-button support for file system/editor navigation
- Close WebSocket when navigating away from /cp/serial
- Use better looking Blinka icon.
added remote css URL to pull additional CSS from the circuitpython.org site (apologies for the black background - this is temporary, I'll send an update to the CP.org css *very* shortly that will undo this)
