Convert package to gem2deb build system
prepare 1.52-2 release
Allow gem2deb 0.2.3 from backports
Conflict with 1.52-2~ instead of 1.52 to allow backports
prepare 1.52-3 release
Imported Upstream version 1.53
Merge commit 'upstream/1.53' into debian-sid
prepare 1.53-1 release
New upstream version 1.54
Merge tag 'upstream/1.54' into debian-sid

Upstream version 1.54
Drop transitional packages
prepare 1.54-2 release
prepare 1.54-1 release