Update jStorage

Contains bugfixes, new license and smaller file size: mw.loader.inspect
went from 16.6 to 11.9. This is still bigger than what they claim:
"jStorage is really small, just about 7kB when minified (4kB when gzipped)!"

Change-Id: I0b6f083a72a27af1e3fd367f61e8f98f74fea5d8