ADDED toString() method.

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>
ADDED: Draft API for a generic document reader and the OSGi document extender.

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>
Merge branch 'xml-processing' of https://github.com/qivicon/smarthome into xml-processing

Conflicts:
	bundles/config/org.eclipse.smarthome.config.xml/META-INF/MANIFEST.MF

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>
ADDED XStream modules (reverted).

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>
ADDED first running version of the extender functionality.

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>
ADDED first running version of the extender functionality.
ADDED Javadoc.

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>