Automatically generate new releases (#59)

* Adapt after the 2.5.9d1 accident.

* Corrections to changelog.

* Also added @‌revision and @‌timestamp PHPDOC tags
@‌revision and @‌timestamp used for SVN refs.

Full enumeration of added custom PHPDOC tags:
@‌accountable, @‌bib, @‌biblio, @‌callback, @‌commit, @‌committer, @‌contributor, @‌courtesy, @‌date, @‌datetime, @‌lastmodified, @‌modified, @‌publisher, @‌reporter, @‌revision, @‌timestamp, @‌user.Some tags like @‌reporter and @‌contributor are more used than others.

* Readme header upgrade.

* Create deploy-to-wordpress.org.yml

* Add distignore

* Comment out `build` command, replace npm with composer

* Remove placeholder comments

* Add build commands

* Fix typo

* Fix version number bug

* Make zip without top-level directory

* Append tag name to plugin zip

* Clean up a bit

* Rename workflow config

* Fix upload paths

* Append tag name to artifact

* Fix paths

* Revert path fix

* Try again

* Add wplm-config.xml to buildfiles

* Fix indentation

* Rename development/csscat.sh to css/csscat.sh

* Rename development/customized-documentation-schema.txt to customized-documentation-schema.txt

* Rename development/customized-template-stack.txt to customized-template-stack.txt

* Version number related fixes before pull request.

* Move csscat script to tools dir

* Rename csscat

* Refactor script

* Update customized-documentation-schema.txt

* Replace empty lines in help output

* Escape empty lines.

* Delete 3 items from `.distignore`
As mentioned, CONTRIBUTING.md and README.md should be included in distributions.

- As an invitation to the Community.
- As a tangible proof of goodwill after the 2.5.9d1 accident.

Also SECURITY.md so Footnotes users see that we’re concerned, and
can reach out without transiting via GitHub.

* Include CONTRIBUTING.md README.md SECURITY.md

* Update sync w/ 5.7 tested.

* Update

* Update composerfiles

Co-authored-by: pewgeuges <73141620+pewgeuges@users.noreply.github.com>

_tools/build.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Moves everything except the stylesheets over to `dist/`
+
+cp -r -t dist class/ js/ img/ languages/ templates/
+cp -t dist features.txt license.txt readme.txt footnotes.php includes.php wpml-config.xml customized-documentation-schema.txt customized-template-stack.txt CONTRIBUTING.md README.md SECURITY.md
+# TODO: once automatic minification is implemented, this should handle that.
+# For now, we shall have to assume that this command is being run on a repo. with
+# minimised stylesheet files already in `dist/css/`.