Fixed date to move to ddox for Phobos documentation

[Martin Nowak via Digitalmars-d]

On 06/05/2016 11:21 AM, Jacob Carlborg wrote:
> I found a minor issue recently. If there's more than one symbol in the
> same module with the same name but with different casing, all these
> symbols are shown on the same "single symbol page". Not sure if that's
> solvable due to some operating systems not using case sensitive file
> systems.

We specifically fix it that way.
[Issue 12526 – DDox possible issue with case sensitive file
names](https://issues.dlang.org/show_bug.cgi?id=12526)

If only the casing differs, the entities should always belong together.

-Martin