MILAN/DUBAI (Reuters) - Italian fashion house Roberto Cavalli was bought on Thursday by Hussain Sajwani, the chairman of Dubai's Damac Properties , the companies said, ending a long sale process.The Florence-based group, founded by designer Roberto Cavalli in the early 1970s and famed for its animal prints, had been struggling for years to relaunch its sales and gain visibility in an industry that is increasingly dominated by large cash-rich conglomerates.Damac's Sajwani bought Cavalli through..