Singleton snippet for Xcode 5

singleton

+ (<#Class name#> *)<#Singleton method#>
{
    static <#Class name#> *sharedInstance = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedInstance = [[<#Class name#> alloc] init];
    });
    return sharedInstance;
}