Merge pull request #2168 from calben/patch-1

add the *.VC.db to unreal engine ignore

UnrealEngine.gitignore

@@ -1,6 +1,9 @@
 # Visual Studio 2015 user specific files
 .vs/
 
+# Visual Studio 2015 database file
+*.VC.db
+
 # Compiled Object files
 *.slo
 *.lo