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>

.github/workflows/release-handler.yml

@@ -0,0 +1,46 @@
+name: Release Handler
+
+# Action runs when a new release is published.
+on:
+  release:
+    types: [published]
+
+jobs:
+  release-new:
+    name: Issue new release
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Build Plugin
+        run: |
+          composer install --no-dev --optimize-autoloader
+          composer run build
+
+      - name: Create release archive
+        uses: montudor/action-zip@v0.1.0
+        with:
+          args: zip -X -r dist/footnotes-${{ github.event.release.tag_name }}.zip dist
+
+      - name: Upload archive as artifact
+        uses: actions/upload-artifact@v2
+        with:
+            name: footnotes-${{ github.event.release.tag_name }}
+            path: dist/footnotes-${{ github.event.release.tag_name }}.zip
+            
+      - name: Upload archive to release
+        uses: JasonEtco/upload-to-release@master
+        with:
+          args: dist/footnotes-${{ github.event.release.tag_name }}.zip application/zip
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      #- name: Deploy release to Wordpress.org 
+      #  uses: 10up/action-wordpress-plugin-deploy@stable
+      #  with:
+      #    generate-zip: true
+      #  env:
+      #    SVN_USERNAME: ${{ secrets.SVN_USERNAME }}
+      #    SVN_PASSWORD: ${{ secrets.SVN_PASSWORD }}