[tracker] (16 commits) Non-fast-forward update to branch wip/carlosg/portal

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/portal' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  4558657... portal: Add XDG portal implementation
  c48cc49... portal: Implement filtering endpoint
  b275301... libtracker-bus: Fallback through portal on bus connections
  6e04255... examples: Add example flatpak definition
  9e34876... portal: Handle */default keywords in policy
  2cb1a60... portal: Set up watch on peers
  98a5526... portal: Add DBus service file
  4407c9e... docs: Add xdg-tracker-portal manpage
  dda47c2... portal: Add CloseSession request
  48c9194... libtracker-bus: Explicitly close sandbox sessions on connec
  5481e46... libtracker-data: Cache connections in SERVICES{} virtual ta
  bc79e2c... portal: Add systemd user session unit file
  562ce9f... portal: Handle missing .flatpak-info file
  16a6cf9... tests: Add tests for CONSTRAINT declarations in prologue
  3334f45... portal: Handle default object path in lookups

Commits added to the branch:

  54cb801... build: restore dbus/systemd options
  6f4cd80... portal: Add XDG portal implementation
  e55d7b9... portal: Implement filtering endpoint
  7e41cec... libtracker-bus: Fallback through portal on bus connections
  01262b1... examples: Add example flatpak definition
  f8e42cc... portal: Handle */default keywords in policy
  d428283... portal: Set up watch on peers
  5b9404b... portal: Add DBus service file
  a3369ec... docs: Add xdg-tracker-portal manpage
  9f3fb89... portal: Add CloseSession request
  5df59e5... libtracker-bus: Explicitly close sandbox sessions on connec
  5d1ab9e... libtracker-data: Cache connections in SERVICES{} virtual ta
  d0efeb6... portal: Add systemd user session unit file
  bde9599... portal: Handle missing .flatpak-info file
  6f95afe... tests: Add tests for CONSTRAINT declarations in prologue
  6f5fd6f... portal: Handle default object path in lookups