dmd Backend converted to Boost License

[Walter Bright via Digitalmars-d-announce]

On 4/7/2017 8:14 AM, Walter Bright wrote:
> https://github.com/dlang/dmd/pull/6680
>
> Yes, this is for real! Symantec has given their permission to relicense it.
> Thank you, Symantec!

While it's still easy to find, for future reference:

https://news.ycombinator.com/item?id=14060846

https://www.reddit.com/r/programming/comments/6419py/the_official_d_compiler_is_now_free_as_in_freedom/