updated to latest schema version

Signed-off-by: Kai Kreuzer <kai@openhab.org>
added EMF update site to be no longer dependent on Xtext update site for EMF

Signed-off-by: Kai Kreuzer <kai@openhab.org>
fixed initialisation behaviour of hue binding

Signed-off-by: Kai Kreuzer <kai@openhab.org>
removed dependency on awt

Signed-off-by: Kai Kreuzer <kai@openhab.org>
removed dependency on awt

Signed-off-by: Kai Kreuzer <kai@openhab.org>
Fixing performance issue in ItemRegistryImpl

Signed-off-by: Kai Kreuzer <kai@openhab.org>