TBR renaming v.io/core/veyron to v.io/x/ref

(and getting rid of unused shell scripts)

MultiPart: 5/13
Change-Id: I09d9df0f4dc7df3d5ca5588513be27b08fe1fd4a
diff --git a/lib/exec/parent.go b/lib/exec/parent.go
index 463223b..0c31dcf 100644
--- a/lib/exec/parent.go
+++ b/lib/exec/parent.go
@@ -16,8 +16,8 @@
 
 	"v.io/x/lib/vlog"
 
-	"v.io/core/veyron/lib/exec/consts"
-	"v.io/core/veyron/lib/timekeeper"
+	"v.io/x/ref/lib/exec/consts"
+	"v.io/x/ref/lib/timekeeper"
 )
 
 var (