removed asynchonous code in init method
removed asynchonous code in init method

I had a crash with bad access in the init. 

IMO it's a bad idea to do anything asynchronously that has to do with setting up views. Views must be modified in the main thread.
filipealva/PickerView,filipealva/PickerView,bguidolim/PickerView,bguidolim/PickerView