Update changelog

Author: vivsriaus

ChangeLog.txt

@@ -1,4 +1,9 @@
-2015.06.05 version 0.9.3
+2015.06.25 version 0.9.4
+* Added Test-AzureResourceGroup and Test-AzureResource cmdlets
+* Refactored Resource Lock cmdlets
+* Removed unnecessary code when getting a resource
+
+2015.06.05 version 0.9.3
 * Fixed bug in Websites cmdlets related to slots #454
 * Fix bug in Set-AzureResource cmdlet #456
 * Fix for new azure resource of Microsoft.Storage #457