Tweak default font size to be a bit bigger
Stub out a new builds/4x page
forgot to update a few css classes
Fix proxying of yardocs for 4x incremental builds
Update 4x builds page to new doc location
Add instructions for using 4x incremental gem repo on builds page
Move /builds/4x to /4x/builds to pave way for more /4x content
Make /4x just redirect to the 4x news feed
Anything can be solved via mod_rewrite

Except typos