2.0.0

• fix bug: root or container params with NodeList value are not treated as array, which should.
• support zmgr directly in object.
• use zmgr fallback instead of old zstack to simplify code logic
• rename ldloader zmgr api ( from set-zmgr to zmgr )
• rename ldld.js, ldld.css to index.js, index.css, including minimized version.