[ooo-build] cws-commit-patch updated for Mercurial

[Jan Holesovsky]

Hi,

In ooo-build master, I revived the cws-commit-patch script, as the initial 
Mercurial clone is not the fastest operation under the sun :-(

So far the following works:

- creating the CWS
- cloning it (using the unbundle trick to make it faster)
  - bundle is remembered in /tmp/DEV300.hg, can be specified on the command
    line
  - bundle is downloaded anew if older than 14 days
- registering the IZ tasks with the CWS

Untested, so probably does not work:

- committing the patch itself

Not implemented:

- pushing

New options:

-b to specify the bundle to use (instead of the default /tmp/DEV300.hg)
-d to specify path to an existing clone of the CWS

Feel free to fix bugs, or implement any missing features ;-)

Regards,
Kendy