SCons was having a crisis of identity and could not find its own modules.
Things are now re-rooted to libexec so that the formula functions similar to
other python tools such as duplicity and denyhosts.
* 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
Signed-off-by: Max Howell <max@methylblue.com>
Scons is now an example of a system that we do duplicated even though easy_install supports it. This is because:
1) Easy Install installs a version that is not current;
2) We may need to directly depend on this formula to build other formula.
