Set deployment target to iOS 7.0
Use dispatch_get_specific to get main queue
Use dispatch_get_specific to get main queue
Use dispatch_get_specific to get main queue
Use dispatch_get_specific to get main queue
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Silenced deprecation warning
Made dispatch properties strong
Removed define is_main_queue()
Silenced deprecation warnings
Silenced deprecation warnings
Silenced deprecation warnings
Added system_version macros