* Use new "url" features
* Use keg_only DSL
* Use "skip_clean :all" DSL
* Whitespace and style cleanups
* Make bash invocations less silly
* Use new man2-man8 helpers
* Remove "FileUtils." since it is included in Formula
* Use real names for deps instead of aliases
* ENV.x11 now updates path, so remove that from individual brews
FixesHomebrew/homebrew#1472.
Did not apply the patch back to ENV, because some software will fail
if it sees "-isystem" parameters (esp. software using apxs)
