D-Day for DMD is today!

[Walter Bright via Digitalmars-d-announce]

https://github.com/D-Programming-Language/dmd/pull/4923

We have made the switch from C++ DMD to D DMD!

Many, many thanks to Daniel Murphy for slaving away for 2.5 years to make this 
happen. More thanks to Martin Nowak for helping shepherd it through the final 
stages, and to several others who have pitched in on this.

This is a HUGE milestone for us.

Much work remains to be done, such as rebasing existing dmd pull requests. 
Thanks in advance for the submitters who'll be doing that. I hope you aren't too 
unhappy about the extra work - it's in a good cause!