Install hawtio v1 on Apache Karaf 4.2.0 M2

If you want to install hawtio v1 on Apache Karaf 4.2.0 M2, simply doing the following doesn’t install hawtio unfortunately.

> repo-add hawtio
> feature:install hawtio

There are two additional features to install before hawtio.

> feature:install aries-blueprint
> feature:install shell-compat

Now you should be able to install hawtio.

In the future, we may need to add those required features to the hawtio feature so that users won’t be required to do the above steps. In the meantime, you can install hawtio by the above steps.