Revisions to the DIP Process

[Mike Parker]

In response to concerns raised at the DConf AGM (and also 
feedback here in the forums), I've updated the documentation for 
the DIP process and the DIP author guidelines, and I've added 
guidelines for reviewers. It's all summarized in this blog post:

https://dlang.org/blog/2019/06/04/revisions-to-the-dip-process/

Anyone intending to participate in the DIP process as an author 
or as a reviewer is requested to become familiar with this 
documentation. Feedback is welcome.

I'll give this a day to settle in. Tomorrow I'll be announcing a 
second round of Community Review for DIP 1019, this time under 
the revised process.