Merge branch 'tcl86' into next

* tcl86:
  Clarify that TCL 8.6 support does not add TCL scripting

Conflicts:
	doc/UPDATES

doc/UPDATES

@@ -4,7 +4,7 @@ next
   * Fix LASTON not being shared
   * Fix './wraith -V' not showing the updated HUB info
   * Fix hub startup not respecting changed HUB lines in config
-  * Support TCL 8.6
+  * Support TCL 8.6 in the beta libtcl support (no scripting support yet)
 
 maint
   * Prevent crashing on startup if openssl can not be loaded