Package "gnome-sushi"

 gnome-sushi (51~rc-0ubuntu1~wip2) stonking; urgency=medium
 .
   * New upstream release (LP: #2166608)
   * debian/control: Update build and runtime dependencies
   * d/p: Set the project name as gnome-sushi to comply with debian policies.
     The package installs data in system paths that are named just sushi,
     while the package name is called `gnome-sushi`, this may lead to
     unexpected clash, so let's keep the old package name but install the
     data in gnome-sushi directories
   * debian/rules: Use gnome-sushi paths
   * d/gnome-sushi.lintian-overrides: Ignore not relevant warnings
   * debian/copyright: Drop invalid reference
   * debian: Update references to ubuntu branch