reorder functions so that they are in the order in which they appear in the window

print an error when we try to connect an inexisting server instead of crash

try to fix ticket 148. has some problems: it wont display the accounts with erros in the accounts window. Only after you close it and open it again

gajim.sh --> gajim.py, adding psyco support if available, small fix in new message dialog if @ is not given

ImageCellRenderer has now better name, gajim.py --> gajim.sh [needs fix to makefile to make it work, padding and xalign trying to clean up (don't work yet). added a fixme in new message dialog about focus problems..

when we change the iconset, change all the icons (in the roster, in the status combobox, in the systray, in (group)chat windows)