Lightbox version bump; Added link to Upptime

Chat identity

The chat app now uses digital signatures for identify verification.

A new blog post discusses this implementation and what I've learned
about PGP and digital signature cryptography.

Also, minor typo fixes and adding an aspell recipe.

Bump jquery version

Simple HTML sanitization

Adding resources not yet in use on public site

Adding live chat page

Migrating hosts; Remove old JS

Initial commit