org.eclipse.osgi.framework.console changed to optional
Downgrade to OSGi Spec 4.2

Signed-off-by: Oliver Libutzki <o.libutzki@external.telekom.de>
Merge pull request #6 from qivicon/consoleinterpreterextension

org.eclipse.osgi.framework.console changed to optional / Downgrade to OSGi Spec 4.2