First iteration of ArlingtonRuby refactor

Iteration #1
  * Keep simple
  * Header with pagelinks
  * Include events
  * Include members
  * Include photos
  * Include concept of knowledge sharing (for links to repos, blogs, tutorials, etc.)
  * Include links to twitter, freenode, and github pages

Apologies for not rebasing.

For Iteration #2
  * Get fancy.