升级TZImagePickerController的依赖版本到3.1.1；发布0.2.1版本

Author: yuzheng

Podfile

@@ -3,6 +3,6 @@ platform:ios,"8.0"
 inhibit_all_warnings!
 
 target 'TZImagePreviewController' do
-    pod 'TZImagePickerController', '3.0.2'
+    pod 'TZImagePickerController', '3.1.1'
     pod 'SDWebImage'
 end

Podfile.lock

@@ -2,16 +2,16 @@ PODS:
   - SDWebImage (4.4.2):
     - SDWebImage/Core (= 4.4.2)
   - SDWebImage/Core (4.4.2)
-  - TZImagePickerController (3.0.2)
+  - TZImagePickerController (3.1.1)
 
 DEPENDENCIES:
   - SDWebImage
-  - TZImagePickerController (= 3.0.2)
+  - TZImagePickerController (= 3.1.1)
 
 SPEC CHECKSUMS:
   SDWebImage: 624d6e296c69b244bcede364c72ae0430ac14681
-  TZImagePickerController: c6736038f5016a8be14132fd07e4e92ce6496385
+  TZImagePickerController: b33cb21ea66c1ed4c56443a0e8c84494c44be560
 
-PODFILE CHECKSUM: b78ae35578264f7c650083051a27bb6b28c6c662
+PODFILE CHECKSUM: 9d3a27521a41fe2548e081017103b8a31faa5173
 
 COCOAPODS: 1.3.1