Usage:
$ gradle bootRun
...
Edit files in src/main/resources and see the changes live in a web app
(e.g. static resources in /static).
The old functionality of bootRun has been replaced (since it didn't add
a lot of value and also didn't expose any JMV argument setters of anything).
This new feature set is backed by any existing "run" task configuration.
In addition autodetects a main class if there is one in the project
sources, so no need for mainClassName = '...' in build.gradle.
Applies the 'application' plugin (so no need to declare that either).
Fixes gh-225
Long package names are really unnecessary in samples and they
just clutter things up. Also Spring Loaded doesn't work with
org.sfw packages, so to demo that technology you need a
different package name.
