[gnome-desktop-testing] Skipping test cases and/or test suites

[Ara Pulido <ara ubuntu com>]

Hello,

The change Eitan made to skip test cases & suites when needed [1] landed 
today in Mago trunk.

I have documented the new way of running tests in the Mago site at 
http://mago.ubuntu.com/Documentation/RunningTests

Please, review the documentation and feel free to modify it if you find 
anything incorrect.

Thanks Eitan for this useful addition to Mago!

Cheers,
Ara.

[1] https://code.launchpad.net/~eeejay/mago/blacklist/+merge/10271