themes, instead of 'Sans 10'

application font setting (only Gnome for now)

open in current folder, context menu even if
not over row

inital code for systray in windows is commited. it is disabled for 0.8 atm because it needs more love. I commit because I hope to fix soon (or else 0.8 will not load it so it is ok)

typos and cleaner strings in atk strings that dkirov has added; pot/po update (some fuzzing sorry..)

pygtk < 2.6