StorageMart gains Gates, Singapore as investors; CBRE brokers American sale; Life Storage opens in Tulsa; Safeguard opens in New Orleans, Long Island; Absolute promotes Dean; Nashville storage sells; Cyzner trades conversion plans; Andover buys in Pensacola; Reliant buys North Carolina storage; Heitman invests in UK storage; E-SoftSys integrates CallPotential; Beyond eyes Bradenton development