lhorie/mithril.js — pull request #197 by Zolmeister (2014-08-13 20:04:20+00:00)
Title: m.prop() resolves promises

This extends #169

```js
test(function() {
var defer = m.deferred()
var prop = m.prop(defer.promise)
defer.resolve("test")

return prop() === "test"
})
test(function() {
var defer = m.deferred()
var prop = m.prop(defer.promise).then(function () {
return "test2"
})
defer.resolve("test")

return prop() === "test2"
})
```