v2.11.0

• Reset placeholder display attribute instead of changing it to block #631
• Firefox issue where tree offset is wrong if scrolled horizontally #626
• Fix Cannot read property '$type' of undefined" error / issue #674
• Remove line which sets the placeholder width explicitly #642
• Added a demo using a table #656
• Fix drop placeholder for tables #654
• Fix empty tree element for tables #655
• Fix Cannot read property 'childNodes' of undefined #650
• Remove duplicate license entry in package.json #658