Added podspec

ZGPullDragTableView.podspec

@@ -0,0 +1,48 @@
+Pod::Spec.new do |s|
+  s.name         = "ZGPullDragTableView"
+  s.version      = "0.0.1"
+  s.summary      = "Awesome TableView Category for Drag and Pull."
+  s.description  = <<-DESC
+
+![img](https://raw.github.com/zhigang1992/ZGPullDragTableView/master/ScreenShots/Screen%20Shot%202013-02-26%20at%203.23.23%20PM.png)
+![img](https://raw.github.com/zhigang1992/ZGPullDragTableView/master/ScreenShots/Screen%20Shot%202013-02-26%20at%203.23.44%20PM.png)
+
+
+The cool thing about [ZGPullDragTableView][] is that, the header and the footer view is a complete functional `UIView`,
+over which you have complete control.
+
+Is also super easy to use, the API is very thright forward.    
+
+
+After import `UITableView+ZGPullDrag.h` to you source file, `UITableView` will have two more method.
+
+```
+- (void)addZGPullView:(UIView *)pullView;
+- (void)addZGDragView:(UIView *)dragView;
+```
+
+and also two more `Delegate`:
+
+```
+@property (nonatomic) id <ZGPullViewDelegate> ZGPullViewDelegate;
+@property (nonatomic) id <ZGDragViewDelegate> ZGDragViewDelegate;
+```
+
+all of its delegate method are optional.
+
+[![ScreenShot](https://raw.github.com/zhigang1992/ZGPullDragTableView/master/ScreenShots/Screen%20Shot%202013-02-26%20at%203.30.47%20PM.png)](http://youtu.be/1LU7k563Cmo)
+
+
+[ZGPullDragTableView]: https://github.com/zhigang1992/ZGPullDragTableView
+
+                   DESC
+  s.homepage     = "https://github.com/zhigang1992/ZGPullDragTableView"
+
+  s.license      = 'MIT'
+  s.author       = { "Kyle Fang" => "zhigang1992@gmail.com" }
+  s.source       = { :git => "https://github.com/zhigang1992/ZGPullDragTableView.git", :tag => "0.0.1" }
+  s.platform     = :ios, '5.0'
+  s.source_files = 'Classes', 'ZGPullDragTableViewClass/**/*.{h,m}'
+
+  s.public_header_files = 'ZGPullDragTableViewClass/**/*.h'
+end