l10n approach for bzr

[Alexander Belchenko]

Another suggestion re i18n/l10n: it's better to not use _ function.
It seems handy but sometimes better use gettext name for translation
function and N_() for marking string as translated without instant
translation. Then later N_-wrapped string should be translated with
gettext() call.

We have a nice example (I think) in QBzr project:

http://bazaar.launchpad.net/~qbzr-dev/qbzr/trunk/annotate/bialix%40ukr.net-20080317183826-7959jumi0i04xug9?file_id=i18n.py-20071004134722-2o8n3hwya5qsnnyn-1