FIXED wrong data type.

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>
REMOVED unused files.
ADDED Javadoc.
INITIAL-VERSION of the ThingTypeProvider implementation.

Signed-off-by: Michael Grammling <m.grammling@external.telekom.de>
FIXED Javadoc.
REFACTORED: XStream uses URLs now.

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