CDK-451: View isReady / signalReady

This PR builds on https://github.com/kite-sdk/kite/pull/98 and https://github.com/kite-sdk/kite/pull/99 adding support for isReady / signalReady on Views.
You could avoid running the test entirely by using [Assume](http://junit.sourceforge.net/javadoc/org/junit/Assume.html).