fix(publisher): add jquery as dependency
chore(demo): use bs3 col classes
fix(demo): load jquery before angular

Following 4012b94233eb7da19dd9fb01763c0e1809851c9c
And using angular-ui-publisher@1.2.3
https://github.com/angular-ui/angular-ui-publisher/commit/ec4721a62a9680bc96315f6e39b3c669afe0633c
Added test for sorting "falsy" items between sortables.