Added ScrollDecorator for Flickable Items

Change-Id: I100584c7d7c747760e0e20867c029828d186f4c0
Reviewed-by: Tomasz Olszak <olszak.tomasz@gmail.com>
Menu renamed to ContextMenu

Change-Id: Ie2563ec9c5a3c4d8a47503cafc5eddd40fada67b
Reviewed-by: Tomasz Olszak <olszak.tomasz@gmail.com>
ContextMenuStyle extracted from ContextMenu

Change-Id: I260eeddec9cffbff2e7f899428a6e27c655b26be
Reviewed-by: Tomasz Olszak <olszak.tomasz@gmail.com>