v3.1.0

- Migrate to `lints`:
  - NOTE: some constants were renamed to lowercase camel case.
- Improved GitHub CI.
- Added browser tests.
- lints: ^1.0.1
- coverage: ^1.0.4

.github/workflows/dart.yml

@@ -29,8 +29,8 @@ jobs:
         run: dart test --platform vm
       - name: Run tests (Chrome)
         run: dart test --platform chrome
-      - name: dartdoc
-        run: dartdoc --no-generate-docs
+#      - name: dartdoc
+#        run: dartdoc --no-generate-docs
       - name: Generate coverage report
         run: |
           dart pub global activate coverage