Merge pull request #2575 from matrix-org/bwindels/customtags

Bring back custom tags, also badges on communities

.eslintrc.js

@@ -91,6 +91,7 @@ module.exports = {
             // to JSX.
             ignorePattern: '^\\s*<',
             ignoreComments: true,
+            ignoreRegExpLiterals: true,
             code: 120,
         }],
         "valid-jsdoc": ["warn"],