Update of devel/glade3 and removal of devel/glade2

[David Demelier]

Hello,

I'm writing the update of glade port. Gnome provides two version, 3.8.1 
for GTK+-2.0 series and 3.10.2 for GTK+-3.0.

Because the both version starts with 3.x.x as version number we should 
create a new port for the GTK+-3.0.

Should I propose something like that ?

devel/glade2 -> removal (old, unused anymore)
devel/glade3 -> rename to devel/glade-gtk2
devel/glade-gtk3 -> new port that I'll write for GTK+-3.0 soon

Cheers,

-- 
David Demelier