Bump version and publish to NPM

Bump version and publish to NPM

diff --git a/DEV.md b/DEV.md
new file mode 100644
index 0000000..e2ec6cb
--- /dev/null
+++ b/DEV.md
@@ -0,0 +1,9 @@
+### How to Publish to NPM
+
+1. First, edit `package.json` and bump the version.
+
+2. Log in to npm `yarn login`
+
+3. Publish: `yarn publish`
+
+
diff --git a/package.json b/package.json
index 64b591b..6524b63 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "message-bus-client",
-  "version": "3.3.0",
+  "version": "3.3.4",
   "description": "A message bus client in Javascript",
   "main": "assets/message-bus.js",
   "keywords": "es6, modules",

GitHub sha: a357a852

What you published was not 3.3.4, it was half way to 3.3.5. It’s missing Remove cache busting implementation from AJAX shim by benlangfeld · Pull Request #247 · discourse/message_bus · GitHub before a new version should be cut.