Escape '_' in certain UI situations
Take for instance the room gajim_test@conference.jabber.nicfit.net. When this is bookmarked and displayed in the Groupchats menu the _t is taken as a keyboard accelerator. The string shows up as gajimtest, with the _ under the t. There are likely other places this needs to be fixed as well.
Does pango provide any help here, as far as util functions?