COMP: Update ctkDashboardDriverScript - Continuous dashboard now empty build dir when started

CMake/ctkDashboardDriverScript.cmake

@@ -68,7 +68,7 @@ if (SCRIPT_MODE STREQUAL "experimental")
   set(force_build TRUE)
   set(model Experimental)
 elseif (SCRIPT_MODE STREQUAL "continuous")
-  set(empty_binary_directory FALSE)
+  set(empty_binary_directory TRUE)
   set(force_build FALSE)
   set(model Continuous)
 elseif (SCRIPT_MODE STREQUAL "nightly")