LaTeX improvements

This release comes 2 months delayed, but belongs to the DataLad 0.15.0 release from September 2021.
The changelog is autogenerated, and hopefully does not contain too many errors.
The majority of work was maintenance, and improvements of the LaTeX backbone of the handbook (huge thanks to @mih for this), rendering the PDF version of the handbook much more beautiful and towards an actually printable book.

What's Changed

• riastores: Avoid deprecated --no-storage-sibling by @kyleam in #641
• Minor changes re code-blocks in PDF by @mih in #647
• Shorten PDF for printed book by @adswa in #648
• Even more adjustments for a printed book by @adswa in #650
• docs: add Remi-Gau as a contributor by @allcontributors in #653
• Python installation instructions by @adswa in #651
• Help: Note about asyncio errors and workaround for Jupyter by @adswa in #646
• More fancy boxes in PDF by @mih in #655
• Further streamlining boxes by @mih in #656
• Numbered, listable and referencable boxes by @mih in #657
• Optional float mode for PDF boxes by @mih in #658
• No vertical lines in a table by @mih in #659
• Bettertables by @mih in #660
• Relax positioning of some boxes, where appropriate by @adswa in #661
• New boxtype importantnote by @mih in #662
• Let figures and tables float. by @mih in #663
• Minor change to align title page with print cover by @mih in #665
• Logo update by @mih in #667
• Disentangle too long and nested Findoutmore's by @adswa in #666
• note -> importantnote by @mih in #664
• Tune footnotes by @mih in #669
• TOC fixes by @mih in #670
• Prevent multiple definition of useless labels by @mih in #671
• New cover art for the Intro part by @mih in #672
• Install: Rework macOS installation by @adswa in #675
• docs: add tamaracha as a contributor by @allcontributors in #676
• In-text references of find-out-mores by @mih in #678
• windowsworkarounds -> windows-wit by @mih in #679
• Adjustments for a printed PDF that work also in html by @adswa in #680
• Refurbish installation instructions by @mih in #682
• BF: Fix a mixed up redirection couple by @adswa in #683
• Beautify the PDF further by @mih in #684
• Make term references accessible in the printed handbook by @mih in #685
• Small update of the extension list by @mih in #686
• Remove quotes from config file displays by @bpoldrack in #689
• On cloning openneuro/openfmri data from the datalad superdataset by @adswa in #690
• Print adjustment chapter 3 onwards by @adswa in #691
• Remove forgotten Windows-workarounds by @adswa in #692
• Add a rough sketch of a DataLad intro for Repronim workshop in Yale by @adswa in #693
• Make the index more comprehensive by @mih in #694
• Add redirector for ?cheatsheet by @yarikoptic in #701
• Adds a Github-actions based CI setup by @adswa in #703
• add redirects for chapters mentioned in ukb manuscript by @adswa in #702
• Another sweep for printing by @adswa in #704
• Fix typo by @mih in #705
• Fix ref tag to close #709 by @jsheunis in #710
• docs: add jsheunis as a contributor by @allcontributors in #711
• GIN: On using Gin as an autoenabled special remote by @adswa in #707
• Mention --assume-ready of datalad-run by @adswa in #699
• ENH: Relative links in sidebar by @effigies in #718
• ENH: Use Zenodo record that resolves to latest version by @effigies in #717
• Add FAQ on GitHub displaying git-annex as the default by @adswa in #722
• docs: add jsheunis as a contributor for content, example by @allcontributors in #726
• Windows weird behavior with file extensions by @adswa in #725
• Mention --dry-run by @adswa in #724
• help: On line endings and autocrfl true configurations for windows users by @adswa in #723
• Add walkthrough for using S3 as a special remote by @jsheunis in #721
• docs: add cni-md as a contributor for bug by @allcontributors in #728
• Fix left-over exit code by @adswa in #727
• Fix inconsistent description of push behavior by @Aksoo in #734
• docs: add AKSoo as a contributor for bug, content by @allcontributors in #735
• Fix typos using codespell by @sappelhoff in #732
• docs: add sappelhoff as a contributor for bug by @allcontributors in #737
• [ENH] add sphinx-copybutton extension by @sappelhoff in #615
• add Stephan as contributor to zenodo file by @jsheunis in #739
• Fix errors in 9.3 back and forth in time by @Aksoo in #740
• MNT: Update outputs to 0.14.4 by @adswa in #742
• Add a monthly cron job to check links in the handbook by @adswa in #743
• Fix broken or permanently redirected links, as discovered by Sphinx's make linkcheck by @adswa in #744
• Update 101-115-symlinks.rst by @lilikapa in #747
• "ultimatively" => "ultimately" by @arokem in #749
• Fixes typo by @arokem in #750
• This is the name of the file that was created earlier on. by @arokem in #751
• "temper" => "tamper" by @arokem in #752
• FIX: GIN siblings - fix typo in code and note that --url should not end with .git by @oesteban in #753
• MAINT: Add @oesteban to zenodo record by @oesteban in #755
• docs: add oesteban as a contributor for data, data, data, bug by @allcontributors in #754
• MNT: Fix link to git-annex docs on GitLab, mention deprecation by @adswa in #756
• Fixlinks by @adswa in #757
• Numbered boxes and references by @mih in #759

New Contributors

• @jsheunis made their first contribution in #710
• @Aksoo made their first contribution in #734
• @oesteban made their first contribution in #753

Full Changelog: v.14.0...v0.15