Fixed bug if finish or fail delegate callbacks dealloc the api
Fixed bug if finish or fail delegate callbacks dealloc the api

The calls to delegate apiDidFinish /didFail should be last in the method because they can result in the api object being released & deallocated.
pwnified/CocoaSoundCloudAPI,briandeweese/SoundCloudCocoaAPIWonder,soundcloud/cocoa-api-wrapper,mhuusko5/SoundCloud-Cocoa-API