Update example app Podfile.lock.

Author: SergioEstevao

Example/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - WPMediaPicker (1.4.1-beta.1)
+  - WPMediaPicker (1.4.1)
 
 DEPENDENCIES:
   - WPMediaPicker (from `../`)
@@ -9,8 +9,8 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  WPMediaPicker: c6873fefaee96c4cae808a3e9401f50ee694075e
+  WPMediaPicker: 8cff8dff846f3440c0c6d088c12240ab85570ee5
 
 PODFILE CHECKSUM: 7c47e10b39aca62b1f30c3c4260cc99456cf95f8
 
-COCOAPODS: 1.6.1
+COCOAPODS: 1.7.1