This tries to align with the X.org communities's long-standing
tradition of trying to be an inclusive community and handing out
commit rights fairly freely.

We also tend to not revoke commit rights for people no longer
regularly active in a given project, as long as they're still part of
the larger community.

Finally make sure that commit rights, like anything happening on fd.o
infrastructre, is subject to the fd.o's Code of Conduct.

v2: Point at MAINTAINERS for contact info (Daniel S.)

v3:
- Make it clear that commit rights are voluntary and that committers
  need to acknowledge positively when they're nominated by someone
  else (Keith).
- Encourage committers to drop their commit rights when they're no
  longer active, and make it clear they'll get readded (Keith).
- Add a line that maintainers and committers should actively nominate
  new committers (me).

v4: Typo (Petri).

v5: Typo (Sean).

v6: Wording clarifications and spelling (Jani).

v7: Require an explicit commitment to the documented merge criteria
and rules, instead of just the implied one through the Code of Conduct
threat (Jani).

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Gustavo Padovan <gustavo@padovan.org>
Acked-by: Petri Latvala <petri.latvala@intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Keith Packard <keithp@keithp.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Kristian H. Kristensen <hoegsberg@google.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Sean Paul <seanpaul@chromium.org>