wmbiff: Display "0" when there are no new emails
treeb17e475d03ccbccccb6af3d2599271bae180b51c
drwxr-xr-x - Temperature.app-1.5
drwxr-xr-x - wmCalClock-1.25
drwxr-xr-x - wmSMPmon-3.1
drwxr-xr-x - wmWeather-1.31
drwxr-xr-x - wmacpi-1.34
drwxr-xr-x - wmacpiload-0.1.2
drwxr-xr-x - wmauda-0.3
drwxr-xr-x - wmbatteries-0.1.3
drwxr-xr-x - wmbiff-0.4.27
drwxr-xr-x - wmcalendar-0.5.2
drwxr-xr-x - wmckgmail-1.1
drwxr-xr-x - wmcpuload-1.0.0
drwxr-xr-x - wmfemon_1
drwxr-xr-x - wmfu
drwxr-xr-x - wmifinfo-0.06
drwxr-xr-x - wmitime
drwxr-xr-x - wmix-3.1
drwxr-xr-x - wmkeys-0.1
m--------- - wmmixer-alsa-0.6
drwxr-xr-x - wmmixer
drwxr-xr-x - wmnet-1.06
drwxr-xr-x - wmnotify-1.0.0
drwxr-xr-x - wmpager-1.2
drwxr-xr-x - wmpower-0.4.3
drwxr-xr-x - wmppp.app
drwxr-xr-x - wmsm.app-0.2.1
drwxr-xr-x - wmsmixer-0.5.1
drwxr-xr-x - wmstickynotes-0.1
drwxr-xr-x - wmsupermon-1.2.2
drwxr-xr-x - wmtv
drwxr-xr-x - wmtz-0.7
drwxr-xr-x - wmweather+-2.12
drwxr-xr-x - wmwifi-0.6
drwxr-xr-x - wmwlmon-1.0