Update ROOT version files to v6.13/04.

build/version_number

-6.13/03
+6.13/04

core/base/inc/RVersion.h

@@ -14,10 +14,10 @@
  *
 */
 
-#define ROOT_RELEASE "6.13/03"
-#define ROOT_RELEASE_DATE "Mar 20 2018"
-#define ROOT_RELEASE_TIME "08:20:05"
+#define ROOT_RELEASE "6.13/04"
+#define ROOT_RELEASE_DATE "May  8 2018"
+#define ROOT_RELEASE_TIME "08:22:04"
 #define ROOT_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-#define ROOT_VERSION_CODE ROOT_VERSION(6,13,3) /* 396547 */
+#define ROOT_VERSION_CODE ROOT_VERSION(6,13,4) /* 396548 */
 
 #endif