Family Dollar Shareholders Vote to Approve Dollar Tree Merger Transaction Creates Leading Discount Retailer with More Than 13,000 Stores and Annual Sales Exceeding $18 Billion Completion of Transaction Expected as Early as March 2015   CHESAPEAKE, VA, 2015-1-22 — /EPR Retail News/ — Dollar Tree, Inc. (NASDAQ: DLTR), the nation's leading operator of discount variety stores selling…