gutenprint template importance

[Adi Roiban]

I see that gutenprint template is a high priority template, even listed
before pulseaudiot, vino, transmission or mousetweaks. 

https://translations.edge.launchpad.net/ubuntu/natty/+source/gutenprint/+pots/gutenprint

I don't know exactly where gutenprint is used in Ubuntu and how can
translators check those translations.

Are there any tips about where to look for gutenprint messages in the
UI?

Many thanks!

--
Adi