Change recommendation for Alamofire integration

Issues with recommending Alamofire-SwiftyJSON:
-  Not updated for Xcode 6.1.
-  No longer necessary as a shim to integrate Alamofire and SwiftyJSON.
- Adds another dependency that needs to be manually included and managed.
Add a super simple error handling example
Merge pull request #92 from JonathanPorta/update-alamofire-integration-recomendation

Change recommendation for Alamofire integration