Merge pull request #1661 from JimBobSquarePants/patch-2

Update Umbraco.gitignore

Umbraco.gitignore

 # Note: VisualStudio gitignore rules may also be relevant
 
+# Umbraco
 # Ignore unimportant folders generated by Umbraco
-**/App_Data/ClientDependency/
-**/App_Data/ExamineIndexes/
 **/App_Data/Logs/
 **/App_Data/[Pp]review/
 **/App_Data/TEMP/
-Cached/
+**/App_Data/NuGetBackup/
 
 # Ignore Umbraco content cache file
 **/App_Data/umbraco.config
@@ -15,3 +14,6 @@ Cached/
 # Make sure to include details from VisualStudio.gitignore BEFORE this
 !**/App_Data/[Pp]ackages/
 !**/[Uu]mbraco/[Dd]eveloper/[Pp]ackages
+
+# ImageProcessor DiskCache 
+**/App_Data/cache/