Added dynamic thing update

Also-by: Michael Grammling m.grammling@external.telekom.de
Signed-off-by: Alex Tugarev <telekom@tugarev.de>
Added 'StorageService#getStorage' for name only

Signed-off-by: Alex Tugarev <telekom@tugarev.de>
Added test for getStorage without classloader

Signed-off-by: Alex Tugarev <telekom@tugarev.de>
Merge pull request #53 from qivicon/storage-service-undo

Added 'StorageService#getStorage' for name only
Merge pull request #52 from qivicon/dynamic-thing-update-contribution

Added dynamic thing update
as part of https://bugs.eclipse.org/bugs/show_bug.cgi?id=433994