Added 2.2.2 release notes in Readme files

Author: andreasmo

HockeySDK_Portable45/README.md

@@ -40,4 +40,7 @@ Included in Nuget Package <em>HockeySDK.Core</em>
 * Added event OnHockeySDKInternalException to HockeyClient for debugging purposes. Add a handler to get all internally swallowed exceptions.
 
 ### Version 2.2.0
-* Stable release
+* Stable release
+
+### Version 2.2.2
+* Fixed dependencies for BCL packages for .Net 4.0

HockeySDK_WP8/README.md

@@ -42,4 +42,7 @@ Included in Nuget Package <em>HockeySDK.WP</em>
 * internal optimizations and updates in HockeySDK.Core
 
 ### Version 2.2.0
-* Stable release
+* Stable release
+
+### Version 2.2.2
+* Added methods to register custom logic after exceptions

HockeySDK_WPF45/README.md

@@ -31,4 +31,7 @@ Included in Nuget Package <em>HockeySDK.WPF</em>
 * Optimizations for updater
 
 ### Version 2.2.0
-* Stable release
+* Stable release
+
+### Version 2.2.2
+* Fixed dependencies for BCL packages for .Net 4.0