[Development] Let's please drop MSVC 2013 for 5.10

[André Pönitz]

On Fri, Jun 16, 2017 at 07:18:25PM +0000, Shawn Rutledge wrote:
> 
> > On 16 Jun 2017, at 11:14, André Pönitz <apoenitz at t-online.de> wrote:
> > 
> > On Thu, Jun 15, 2017 at 04:07:03PM -0700, Thiago Macieira wrote:
> >> character set. Without the /utf-8 option added in MSVC 2015 Update 2, the 
> >> conversion fails and the compiler prints:
> >> 
> >> warning C4566: character represented by universal-character-name '\u0431' 
> >> cannot be represented in the current code page (1252)
> >> 
> >> [ok, not a C++11 issue per se, but we still want to use Unicode source code]
> > 
> > There was never *consensus* on using something outside plain ASCII in
> > Qt sources.
> 
> The backslash, u, and the digits are all ASCII characters.
> This time we are not talking about utf-8 in source code.

The broad topic would be "insisting on ways to write code that
- while being formally correct - cause pain already in our own
processes, not to mention those of our users."

Andre'