Finished "Known Sensors" page, as well as main page which...

...shows online sensors.  Still need to get sending of outbound signals
working.

Finished sensor compendium page.

Fixed errors in stub generator.

Ran a bunch of squawk tests (algorithm testing only, not implemented in SG
yet).  Will print them out and go through them by hand to ensure proper
squawking.
Merge branch 'master' of github.com:squidpie/sansgrid