noconfirm_close_muc_rooms to say that list wants to be space seperated {should be our default way} and desc to finish with dot.

add an icon in 48x48 folder for each iconset (copy from 32x32 or 16x16). Improvements on that are welcome: svg iconset or bigger icons

italic instead of bold. use since for not offline contacts and last status for offline; fix spacing in vcard text

we now keep last_status_time, show it in tooltip and information window, ask it (jabber:iq:last, JEP-0012) when we open information window. Fixes #1133

use better varnames [PEP8 says varnames such as l are way bad for maintability and high readability, comment the code, cleanup so it does not hide logic. thanks Yann for explaining the logic