add --exclude-config to opt out of 1 or more configs. This always is respected,
regardless of the ordering of --config and --exclude-config.

add --verbose [-v] to dump extra info, e.g. what configs are being run

changed --config to enforce a unique set of configs to be run, such that
--config 8888 --config 8888 results in just 1 run of 8888.
Review URL: https://codereview.appspot.com/7027053

git-svn-id: http://skia.googlecode.com/svn/trunk@7013 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed