Add League of Beer logo.

If someone can show my how stylesheets/style.css gets compiled, I'll
move the crappy inline CSS into that.
add Concetta details
Add Pluralsight as a sponsor.
Revert "Add Pluralsight as a sponsor - wrong logo."

This reverts commit cf27b05a7d6a9b756e7ca737211d9ee8725e6a57.
Added Pluralsight sponsorship details
Merge branch 'update_c_o_c' of github.com:RailsBridge-CapeTown/rails-bridge-capetown.github.com into update_c_o_c
Tighten up CoC, AHP: remove repeats, clarify.