DMD 0.170 release

[Walter Bright]

Bill Baxter wrote:
> Also -- and I think you've noted this before yourself -- end users often 
> go for local optimizations.  In the short term they want a fix to the 
> immediate problem they see.   But that's not a good way to design a 
> language.  You want the global optimum.

Sure. But in the year and a half since the long thread proposing 
foreach_reverse and various alternatives, nothing better has come up. 
foreach_reverse gets the job done in a simple, understandable, and 
efficient manner.