Updated the README with the URLConvertible and top-level API changes.
Updated the README with the URLConvertible and top-level API changes.

antigp/Alamofire,easyui/Alamofire,twobitlabs/Alamofire,easyui/Alamofire,tonyli508/AlamofireDomain,Vkt0r/Alamofire,yimajo/Alamofire,iosheadhunter/Alamofire,Lomotif/Alamofire,Farteen/Alamofire,mbhuta/Alamofire,Noobish1/Alamofire,tonyli508/AlamofireDomain,dgdosen/Alamofire,Alamofire/Alamofire,Noobish1/Alamofire,jschmid/Alamofire,mbhuta/Alamofire,richardPFisk/Alamofire,Alamofire/Alamofire,dgdosen/Alamofire,yimajo/Alamofire,antigp/Alamofire,richardPFisk/Alamofire,Lomotif/Alamofire,twobitlabs/Alamofire,Farteen/Alamofire,iosheadhunter/Alamofire,jschmid/Alamofire,Vkt0r/Alamofire