[MERGE] Implement --output for diff and cat, added -o as an alias.

[Matthieu Moy]

Hi,

I've filed a bug, but it might be worth pinging the list too:

https://launchpad.net/products/bzr/+bug/55414

Branch:
http://www-verimag.imag.fr/~moy/bzr/bzr/bzr.output-option/

1908: Matthieu Moy 2006-08-06 output as a global option, -o as a short alias
1909: Matthieu Moy 2006-08-06 diff -o FILE implemented
1910: Matthieu Moy 2006-08-06 Implemented -o for "bzr cat"
1911: Matthieu Moy 2006-08-06 fixed import statements

-- 
Matthieu