RF-12900: use Tag.handlerClass (type-safe variant) instead of Tag.handler
RF-12900: move TagHandlers and associated implementation to respective ui.* packages
RF-12900: remove unused packages and EmptyHandler; moved BehaviorRule to ui.ajax package
RF-12900: refactored core components to subpackages under ui.core
RF-12900: removed unused ActionListenerHandler and LazyActionListener
RF-12900: removed unused UIActionParameter
RF-12900: refactored ajax components to subpackages under ui.ajax
RF-12900: refactored input components to subpackages under ui.input
RF-12900: refactored iteration components to subpackages under ui.iteration
RF-12900: refactored output components to subpackages under ui.output and ui.toggle
RF-12900: refactored drag components to subpackages under ui.drag
implement downloading of images
add download button
uncomment, fix image name creation
fix event handling
format, remove unnecessary logging
update functionality (remove progressbar, add notifyMessage
Merge branch 'photoalbum/download-from-fb' of https://github.com/richfaces/richfaces5 into photoalbum/download-from-fb