New 2021Q2 branch

[Rene Ladan]

Hi,

The 2021Q2 branch has been created. It means that the next update on the
quarterly packages will be on the 2021Q2 branch.

A lot of things happened in the last three months:
- pkg 1.16.3
- New USES: kodi mpi
- New keywords: exec postexec postunexec preexec preunexec touch unexec
- New default version: IMAGEMAGICK=7
- Removed default version: JULIA
- Default version of GCC and LLVM changed for PowerPC
- Firefox 87.0
- Firefox-esr 78.9.0
- Chromium 89.0.4389.114
- Ruby 2.6.7 and 2.7.3

This is the first quarterly branch that is natively created using Git.

Next quarterly package builds will start on Thursday 1:00 AM and
should be available on your closest mirrors few days later.

For those stat nerds out there, here's what happened during the last 3 months on head:
Number of commits: 9481
Number of committers: 168
Most active committers:
2007 Author: Sunpoet Po-Chuan Hsieh <sunpoet at FreeBSD.org>
 930 Author: Yuri Victorovich <yuri at FreeBSD.org>
 470 Author: Jan Beich <jbeich at FreeBSD.org>
 335 Author: Neel Chauhan <nc at FreeBSD.org>
 305 Author: Piotr Kubaj <pkubaj at FreeBSD.org>
 165 Author: Mark Linimon <linimon at FreeBSD.org>
 165 Author: Fernando Apesteguía <fernape at FreeBSD.org>
 161 Author: Dmitry Marakasov <amdmi3 at FreeBSD.org>
 156 Author: Tobias C. Berner <tcberner at FreeBSD.org>
 149 Author: Li-Wen Hsu <lwhsu at FreeBSD.org>
Diffstat: 47916 files changed, 638442 insertions(+), 692917 deletions(-)

and on the 2021Q1 branch:
Number of commits: 620
Number of committers: 64
Most active committers:
 164 Author: Jan Beich <jbeich at FreeBSD.org>
  58 Author: Piotr Kubaj <pkubaj at FreeBSD.org>
  52 Author: Antoine Brodin <antoine at FreeBSD.org>
  20 Author: Guido Falsi <madpilot at FreeBSD.org>
  18 Author: Fernando Apesteguía <fernape at FreeBSD.org>
  18 Author: Dima Panov <fluffy at FreeBSD.org>
  17 Author: Kirill Ponomarev <krion at FreeBSD.org>
  16 Author: Bradley T. Hughes <bhughes at FreeBSD.org>
  15 Author: Juraj Lutter <otis at FreeBSD.org>
  14 Author: Thomas Zander <riggs at FreeBSD.org>
Diffstat: 1655 files changed, 28258 insertions(+), 34502 deletions(-)

Regards,
René