Update debian/copyright date and addresses
Target unstable to release
Refresh debian/watch
License SGI_atlantis not needed after removal of files from Xcode
Add build-dependency on libdbus-1-dev, to use D-Bus
Remove from debian/copyright files that are now filtered out when creating the orig.tar
Prepare for 2.0.0 release
Merge tag 'upstream/2.0.0+dfsg1'