Adobe AEM/CQ - adding property to a node with ExtJS

http://stackoverflow.com/questions/21587049/how-can-i-make-a-new-jcrcontent-node-with-extjs

http://stackoverflow.com/questions/20398657/how-to-add-new-property-to-jcr-node-through-cq-extjs

Important note:
The new property created cannot have a null/empty value - otherwise it will not create the property..