release: Update NEWS for the 2.6.0 release
release: Update NEWS for the 2.6.0 release

Updated basic info, contributors and translators.
Bugs and features will follow.

GNOME/banshee,stsundermann/banshee,ixfalia/banshee,arfbtwn/banshee,babycaseny/banshee,ixfalia/banshee,arfbtwn/banshee,Carbenium/banshee,dufoli/banshee,babycaseny/banshee,GNOME/banshee,stsundermann/banshee,Carbenium/banshee,Carbenium/banshee,ixfalia/banshee,babycaseny/banshee,ixfalia/banshee,arfbtwn/banshee,ixfalia/banshee,stsundermann/banshee,Dynalon/banshee-osx,Dynalon/banshee-osx,Carbenium/banshee,stsundermann/banshee,dufoli/banshee,dufoli/banshee,dufoli/banshee,stsundermann/banshee,dufoli/banshee,Dynalon/banshee-osx,Dynalon/banshee-osx,Dynalon/banshee-osx,babycaseny/banshee,dufoli/banshee,Carbenium/banshee,ixfalia/banshee,GNOME/banshee,Dynalon/banshee-osx,stsundermann/banshee,stsundermann/banshee,babycaseny/banshee,stsundermann/banshee,GNOME/banshee,dufoli/banshee,Dynalon/banshee-osx,arfbtwn/banshee,babycaseny/banshee,GNOME/banshee,Dynalon/banshee-osx,ixfalia/banshee,babycaseny/banshee,babycaseny/banshee,arfbtwn/banshee,GNOME/banshee,GNOME/banshee,arfbtwn/banshee,Carbenium/banshee,arfbtwn/banshee,GNOME/banshee,arfbtwn/banshee,ixfalia/banshee,dufoli/banshee