parse :[英]pɑ:z[美]pɑ:rs vt.从语法上描述或分析（词句等）
https://www.parse.com/apps/quickstart?onboard=#parse_push/ios/existing
1.Install the SDK
1）Download & unzip the SDK
(Make sure you are using the latest version of Xcode(4.6+) and targeting iOS 5.0 or higher)
2) Add the SDK to my app
(Drag the Parse.framework folder you downloaded into your Xcode project folder target.
Make sure the "Copy items to destination‘s group folder" checkbox is checked)
3) Add the dependencies
(Click on Targets -> Your app name -> and then the ‘Build Phases‘ tab.
Expand ‘Link Binary With Libraties‘ as shown.)