[PATCH weston 0/4] Doc updates, GitLab MRs

[Daniel Stone]

Hi,
The first two patches simply copy Pekka's CONTRIBUTING.md work, which
just landed in Wayland, into Weston.

The third patch attempts to use the power of the English language,
augmented with Markdown, to explain to people what Weston is in 2018,
and how they might go about using it. The previous documentation was
never quite clear on any of those things.

The final patch is a slightly larger update. Though people had
reservations about using MRs for Wayland and wayland-protocols in the
discussion about migrating to GitLab, the opinion from Weston developers
was unanimously in favour of doing so.

I suggest we begin using MRs for Weston either shortly before 5.0 (as we
enter beta?), or immediately afterwards. Doing so allows us to track
review comments across multiple revisions of patches, lets us run CI on
all the branches before we push, and offers much more foolproof tracking
of active patchsets than Patchwork.

Cheers,
Daniel