update translations

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
Release GPaste 3.0

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
update NEWS

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
post release version bump

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>