dmd 1.048 and 2.033 releases

[bearophile]

Walter Bright:
> The flow analysis could be run on every compile by default, but it would 
> make for pretty slow turnaround.

On GCC if you want a safer compilation you add things like -Wall -Wextra, etc.

In D the default is better to be safe (just like you add -release to remove some safeties), so with flow analysis activated. If someone needs a faster but less safe compilation, then such person may add a flag to disable flow analysis, like -noflow.

Bye,
bearophile