Meteor 1.4 AssertionError: "undefined" === "function"

[Lynn-H]

Meteor is now at 1.4: http://info.meteor.com/blog/announcing-meteor-1.4

The bluemix meteor buildpack picks up the 1.4 bootstrap, but the compile has not been changed to install node4 so you get the following error in bluemix when the application tries to start:

2016-07-28T09:56:24.854+0100[DEA/182]OUTStarting app instance (index 0) with guid 4338337c-4f95-4079-a663-cbe0ef82eb29
2016-07-28T09:56:30.362+0100[App/0]ERRassert.js:93
2016-07-28T09:56:30.362+0100[App/0]ERR
2016-07-28T09:56:30.363+0100[App/0]ERR throw new assert.AssertionError({
2016-07-28T09:56:30.363+0100[App/0]ERR ^
2016-07-28T09:56:30.366+0100[App/0]ERR at Module._compile (module.js:456:26)
2016-07-28T09:56:30.366+0100[App/0]ERR at Function.Module._load (module.js:312:12)
2016-07-28T09:56:30.366+0100[App/0]ERRAssertionError: "undefined" === "function"
2016-07-28T09:56:30.366+0100[App/0]ERR at Object. (/home/vcap/app/deploy/bundle/programs/server/boot.js:9:13)
2016-07-28T09:56:30.366+0100[App/0]ERR at require (module.js:380:17)
2016-07-28T09:56:30.366+0100[App/0]ERR at Object.Module._extensions..js (module.js:474:10)
2016-07-28T09:56:30.366+0100[App/0]ERR at Module.load (module.js:356:32)
2016-07-28T09:56:30.366+0100[App/0]ERR at Module.require (module.js:364:17)
2016-07-28T09:56:30.366+0100[App/0]ERR at Object. (/home/vcap/app/deploy/bundle/programs/server/mini-files.js:108:24)
2016-07-28T09:56:30.366+0100[App/0]ERR at Module._compile (module.js:456:26)
2016-07-28T09:56:30.366+0100[App/0]ERR at wrapPathFunction (/home/vcap/app/deploy/bundle/programs/server/mini-files.js:77:10)

Because mini-files.js:108 is specifying a node 4 function.

I have tried changing compile line to:
node_version=$(curl --silent --get https://semver.io/node/resolve/4.4.x)
which works fine with a simple try-meteor app.