Log message:
tex-pgf{,-doc}: update to 3.1.10

- `\pgfversiondatetime` and `\pgfrevisiondatetime` have been removed.
  `\pgfversiondate` and `\pgfrevisiondate` now use the format `YYYY-MM-DD`.
  `\pgfrevision{,date}` and `\pgfversion{,date}` are synonyms for now, but the
  revision should eventually gain back its original meaning.  However, as of now
  this is not supported by l3build.
- Many operations in `pgfkeys` used to use `\csname` directly which lets the
  given csname become `\relax` in case it wasn't defined. This resulted in some
  leakage of accidentally `\relax`ed keys into the global scope. This has been
  cleaned up a little. To preserve compatibility macros that used to expand to a
  `\relax`ed csname now expand to a primitive `\relax`. This affects the
  user-level commands `\pgfkeysgetvalue` and `\pgfkeysgetvalueof`. For the
  former the change should not be visible except for the number of expansions
  required. For `\pgfkeysgetvalueof`, however, the behavior is manifestly
  different in that it will now expand to an alias for the primitive `\relax` in
  case the value is undefined instead of a `\relax`ed csname. It has always been
  semantically wrong to assign to the result of `\pgfkeysgetvalueof`, but now it
  will have undesired side-effects. Therefore this change is breaking.
- The `textures` and `vtex` drivers have been deprecated. Both engines are no
  longer in active development and lack eTeX features which are required for
  quite some time in PGF.
- The file `pgfutil-common-lists.tex` is deprecated and therefore no longer
  `\input` by `pgfutil-common.tex`. The macros from this file are specifically
  meant for pgfplots and are not used in PGF at all.

### Added
- l3build support for packaging PGF/TikZ
- Add Matrix chat to README
- Add rhombic polihedra #1022
- Add Developer Certificate of Origin (DCO) to Pull Request template and enforce
- Add test set for `graphdrawing` (gd)
- pgfkeys gained support for loading libraries
- Add dependabot to keep GitHub Actions up to date

Log message:
print: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

Log message:
print: Remove SHA1 hashes for distfiles

Log message:
tex-pgf{,-doc}: update to 3.1.9a

Emergency release to fix pgfplots which depends on unreleased parts of
PGF.

Log message:
tex-pgf{,-doc}: update to 3.1.8b

3.1.8b
Hotfix for handling of TeX conditionals on a path.  We can't forward
\relax and frozen \relax through the parser because there is existing
code that relies on this.

The recommendation is to use expandable conditionals where possible.

3.1.8a
Hotfix for the new topaths handling.  One instance did not yet properly
preserve relative coordinates.

3.1.8
If a topath is bent by any of the in=, out=, bend=, etc. options, a
Bezier curve is constructed in the background.  To infer the positions
of the control points the start and end coordinate are converted to
absolute coordinates. However, this has the effect that subsequent
points on the path think that the endpoint of the topath was absolute
which can lead to counter-intuitive path construction, e.g.
```latex
\draw (2,0) to[out=0,in=180] +(1,0) -- ++(0,-1) -- +(1,0);
```
If old code relies on this behavior, this drawing will silently break!
Please open an issue if you rely on this.

This release introduces a fix for path handling which concerns
expansion of tokens on the path in particular with respect to
conditional.  Previously when the expansion of a conditonal resulted in
a frozen \relax the parser would just give up.  Now the parser will
skip over the frozen \relax and continue to expand tokens.  Whether
this will result in a meaningful expansion is up to the user.

This release also includes other bug fixes.

Log message:
tex-[h-s]*: update to texlive 2020 versions

tex-hyperref{,-doc} to 7.00d
tex-jsclasses to 2020
tex-kotex-oblivoir to 2.2.1
tex-latexconfig to 2020
tex-lettrine{,-doc} to 2.23
tex-listings{,-doc} to 1.8d
tex-listofitems{,-doc} to 1.63
tex-moderncv{,-doc} to 2.0.0.52669
tex-ocgx2{,-doc} to 0.48
tex-overpic to 1.3
tex-parskip{,-doc} to 2.0d
tex-pdfpages{,-doc} to 0.5q
tex-pdftex{,-doc} to 2020
tex-pgf{,-doc} to 3.1.5b
tex-pgfplots{,-doc} to 1.17
tex-pict2e{,-doc} to 0.3c
tex-platex{,-doc} to 2020
tex-polyglossia{,-doc} to 1.49
tex-preview{,-doc} to 12.2
tex-ptex-base{,-doc} to 2020
tex-schwalbe-chess{,-doc} to 2.7
tex-siunitx{,-doc} to 2.8b
tex-snapshot{,-doc} to 2.13
tex-subfiles{,-doc} to 1.6
tex-supertabular to 4.1g
tex-latex-base-dev{,-doc} version 20201001pre5

Log message:
all: migrate several HOMEPAGEs to https

pkglint --only "https instead of http" -r -F

With manual adjustments afterwards since pkglint 19.4.4 fixed a few
indentations in unrelated lines.

This mainly affects projects hosted at SourceForce, as well as
freedesktop.org, CTAN and GNU.

Log message:
tex-*: add TEXLIVE_UNVERSIONED=yes