Updated pom.xml parent arcusys-oss-project to version 13.3.1, added
license information and custom configuration for license-maven-plugin
Changed portlet name to "Vaadin Configuration"
Minor edits, formatting
Removed unused class ControlPanelUIProvider
Added license boilerplates to source files
Updated bootstrap/arcusys-oss-project version to 13.3.1
Added bootstrap-settings.xml for an alternative way of bootstrapping OSS
repos.
Added missing repository/url element!
Merge pull request #9 from mtaivai/master

Portlet name changed, added license boilerplates, minor formatting improvements, build script improvements