change to SDWebImage

[mythodeia]

use SDWebImage instead of AFNetworking

[abiaad]

Please explain your reason to use this library.

[mythodeia]

@abiaad
Hello,
its just for people who do not use AFNetworking and use custom made classes for their network requests along with SDWebImage for more aggressive caching & storage.
thanks

[abiaad]

Ok I prefer to keep AF on the main branch :)

[mythodeia]

@abiaad
yes of course. don't worry about it. i just sent the pull request for people who might be already using SDWebImage for their caching. again thanks for the code

[abiaad]

Ok ! Thanks for you contribution ;)