[PROJ] Motion: promote PROJ 7.1.0RC2 to final

[Howard Butler]

> On Jun 29, 2020, at 4:37 AM, Even Rouault <even.rouault at spatialys.com> wrote:
> 
> 
> Hi,
>  
> Motion: promote PROJ 7.1.0RC2 to final 7.1.0
>  
> Starting with my +1

+1

Howard