Update to 0.9.0.
    
    - Make the -libs subpackage installable on its own:
      - Move files needed by the libraries to the subpackage.
      - Let packages depend on -libs.
    - Add rsync as dependency to the templates package.
    - Add (optional) subpackages for Python3 and Lua bindings.
    - Add upstream patches for the Fedora template.
    - Define and use the _pkgdocdir macro, also fixing rhbz#1001235.
    - Update License tag.