Use NSUInteger for count in SPTPersistentDataCaseTests
Use NSUInteger for count in SPTPersistentDataCaseTests

Fixed a problem when building 64-build tests.

spotify/SPTPersistentCache,spotify/SPTPersistentCache,FootballAddicts/SPTPersistentCache,iOSCowboy/SPTPersistentCache,FootballAddicts/SPTPersistentCache,iOSCowboy/SPTPersistentCache,chrisbtreats/SPTPersistentCache,chrisbtreats/SPTPersistentCache,chrisbtreats/SPTPersistentCache,FootballAddicts/SPTPersistentCache,chrisbtreats/SPTPersistentCache,spotify/SPTPersistentCache,iOSCowboy/SPTPersistentCache,FootballAddicts/SPTPersistentCache