Change Mocha timeout for all tests

I knew how to set a custom timeout on individual tests but for some reason I had a hard time figuring out how to change the default across all tests.  I couldn't even find it on the Mocha site. After a little extra digging, I finally came across just what I was looking for. The following example bumps the default 2 second timeout up to 30 seconds. Go nuts!

mocha --timeout 30000