xserver 1.20 RC1 tomorrow

[Adam Jackson]

I'd like to call the (xfree86) ABI frozen in RC1, and I think for the
remaining changes I'd like to see landed for 1.20 we can mostly land
them without ABI breaks. To enumerate:

1) https://patchwork.freedesktop.org/series/38022/ 
Xwayland streams support. No xfree86 changes.

2) https://patchwork.freedesktop.org/series/27289/
DRI3 v1.2. Has some ABI changes, but none that are essential, the old
single-fd API can either be kept as is, or implemented in terms opf the
new multiple-fd API.

3) https://patchwork.freedesktop.org/series/30946/
DMA fences for DRI3. Does have at least one ABI change that looks
essential, in misync. 

4) https://patchwork.freedesktop.org/series/37274/
Per-window flips for Xwayland. No xfree86 changes.

I'm not aware of any other major change series outstanding (that I
haven't myself written and failed to send). If you know of something
I've missed, please yell very loudly very soon.

Also, if you care about any of the above, patch review would be greatly
appreciated.

- ajax