Refer to activities page for all activity information
Shrink navigation bar to include just github, irc, and activities
Move calendar to the top of the activities page
Shrink calendar and remove its heading
Simplify activities page
Add Jargon File quote to index
Shuffle around and reword index content
Add a committee page
Add link to committee page from index
Merge pull request #38 from Barrucadu/master

Update website content
Fix activities document link