Add unique id to FlashElement
Add 'id' in Object returned FlashElement::getData()
Add FlashCollection::getById()
Change commande stopflashBlock & stopflashUnblock to simple
Add FlashCollection::requestChange() & request change on block/unblock commandes handler
Move whitelist & elementId into FlashCollection + Send FlashCollection instance to FlashElement
Small fix + Add requestChange on unblocking by user
Add FlashElement::isValid() + Ignore invalid elements
Make web accessible all icons
Change min replacement size to 34x34 + Adapt icon size with thelement size