Add setup files for github-pages

This allows precise(?) mirroring of the github pages environment for jekyll.
Takes advantage of the bundler package manager for ruby gems.
Merge branch 'master' of github.com:jashapiro/jashapiro.github.com into bootstrap
Add gemfile data.
Update to latest bootstrap changes.

Navbar updates in particular to fit new settings.

Also made footer transparent to avoid a bit of ugliness. Still not happy with the sticky footer/responsive combination. May kill the footer or try something completely different.