afnetworking branch.
cocoapods installed
afnetworking installed through pods
store search xworkspace
installed AFNetworking through cocoapods
Replaced dispatch_async networking code with AFNetworking calls
Added Cancel operation if 2nd search is started before the 1st one finishes
Added segmented controller to result according to the category.
Adding support to display images.
cancel image download if scrolling too fast.
prepareForReuse method
Added DetailViewController as a modal view controller