use apt-add-repository for ubuntu in install instructions

[opensuse:software-o-o.git] / README.promodvd

To make the mail sending work on buildserviceapi, I had to patch 
/usr/lib64/ruby/gems/1.8/gems/gettext_rails-2.0.0/lib/gettext_rails/action_mailer.rb 
in line 30: 
create_bang_without_gettext(*arg)
to
create_without_gettext!(*arg)