dmd 1.064 and 2.049 release

[Don]

bearophile wrote:
> Walter Bright:
> 
>> This is primarily a bug fix release.
> 
> I was away. Thank you for all the work.
> For the close future I suggest to focus a bit more on fixing language/design corner cases, instead of just on normal dmd/Phobos/druntime bugs (as done in this release).

Sorry bearophile, regressions and wrong-code bugs will ALWAYS have top 
priority. There will be no apology for fixing bugs like 3996, 4681, and 
4009. <g>.