Merge branch 'barry/2021-06-10/fix-chkerrq' into 'main'

Fix missing ierr =, removed incorrect CHKERRQ(), change CHKStringError

See merge request petsc/petsc!4078

- Cxx dialect will now also be inferred from compiler flags, although users will now be
warned that they should let PETSc auto-detect the flag when setting the dialect this way
- Change dialect flags

- Cxx dialect will now also be inferred from compiler flags, although users will now be
warned that they should let PETSc auto-detect the flag when setting the dialect this way
- Change dialect flags to be consistent with compiler flags; --with-cxx-dialect=gnu++14
means you want -std=gnu++14, no more, no less
- Fix for using no flag. Previously we would bail out immediately without running the
tests and therefore wouldn't set any of the capability defines. We now run all tests, just
don't set the flag in the end
- Fix a number of corner-cases when handling Cxx dialect detection

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mention the new c++ dialect detection changes in the 3.16 changelog

Vec: Fix VecTaggerComputeBoxes(), VecTaggerComputeIS() to return a boolean whose value is true if the list was created

Docs: Sphinx meta-docs: condense point on environment variables and remove point on formatting the single command configure

Docs: Sphinx metadocs: shorten point on console snippets

Docs: Sphinx meta-docs: move literalinclude instructions to the top and remove point on not using code:: directive

Docs: Sphinx metadocs: add note on confusing escape required to pluralize inline code snippet

Docs: Sphinx metadocs: shorten entry on internal links

Docs: Sphinx metadocs: fix indentation

Docs: re-add dev changes link and resolve warnings in dev.rst

Docs: fix incorrectly formatted link

Docs: mark custom extension as safe for parallel read

Merge remote-tracking branch 'origin/release'

Merge branch 'psanan/unify-bib' into 'release'

Docs: Consolidate .bib files

See merge request petsc/petsc!4428

Merge branch 'psanan/docs-clean-up-integration-page' into 'release'

Docs: clean up integration and contributing pages

See merge request petsc/petsc!4432

Merge remote-tracking branch 'origin/release'

Developer Docs: Major edit of integration and contribution sections

* Update integration workflow sections.
* Remove custom CSS and popup images in pipeline and MR descriptions, in
favor of simple

Developer Docs: Major edit of integration and contribution sections

* Update integration workflow sections.
* Remove custom CSS and popup images in pipeline and MR descriptions, in
favor of simple inline images.
* Significantly shorten some tutorial sections on MRs and pipelines.
* Move pipeline tutorials to a separate file.
* Significantly condense Git instructions, and move to contributing
section from integration section.
* Many small edits and fixes.

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Docs: rename doc/Makefile to doc/makefile

Merge branch 'psanan/2021-10-08/doc-fix-tao-labels' into 'release'

Doc: TAO Manual: add missing section labels

See merge request petsc/petsc!4429

DM: Added DMGet/SetNaturalSF()

Add PetscDTPTrimmedEvalJet(): evaluates P trimmed polynomials

This follows the construction in Arnold, Falk and Winther section 4.4

I do not know yet if this basis is stable for evaluation

Start t

Add PetscDTPTrimmedEvalJet(): evaluates P trimmed polynomials

This follows the construction in Arnold, Falk and Winther section 4.4

I do not know yet if this basis is stable for evaluation

Start test of PetscDTPTrimmedEvalJet()

Document and cite the implementation of P trimmed evaluation

Limit P trimmed test output to condition numbers

Add negative form degrees to PetscDTPTrimmedEvalJet()

Add alternate implementation of trimmed polynomials

Remove the reference implementation in favor of a simpler, better conditioned alternative

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Docs: migrate "editing online" material to contributing page and add note on community page

Docs: remove outdated ReadTheDocs tutorial video link

Merge remote-tracking branch 'origin/release'