Just updated to 0.7.9
I used minimos' #987 code :
dpkg --ignore-depends=meecast-applet-enable -r meecast

Perfect result :
Meecast 0.7.6 = uninstalled
Activating Applet = still here.

Version 0.7.9 was installed from openrepos,
Meecast is now working perfectly, updatng forecasts as it should.

Thanks to minimos & vasvlad.

@yam603
Sunset and sunrise shown times are UTC times. France & Germany time zone is one hour ahead of UTC's.