build-webkit: document sdk, debug, release, device, and simulator options
https://bugs.webkit.org/show_bug.cgi?id=109221

Patch by David Farler <dfarler@apple.com> on 2013-02-09
Reviewed by David Kilzer.

* Scripts/build-webkit: Add options to usage
* Scripts/webkitdirs.pm: Remove --deploy and --devel checks

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142373 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed. Update my IRC nickname in committers.py.

* Scripts/webkitpy/common/config/committers.py:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142374 268f45cc-cd09-0410-ab3c-d52691b4dbfc