v2.3.0

• [CHANGED] renamed (undocumented) event 'loaderror' to 'loadError'
• [Added] postProcess now allows to signal error conditions (so it becomes easy to handle custom ajax response formats)
• [Added] node.setStatus()
• [Added] ext-clones to the standard distribution.
• [Improved] loadError allows to return false to prevent default handling
• [Fixed] #258 Fix moveTo when moving a node to same parent
• [Fixed] #257 Glyph expander sometimes disappears