travelmate: update 0.7.2

backend:
* remove redundant 'iwinfo' support & add 'iw' package dependency
* refine stop action & json runtime housekeeping
* various small fixes
* documentation update

frontend (see LuCI repo):
* simplify uplink interface setup (just one Click! ;-),
  now part of the overview tab
* cosmetics

Signed-off-by: Dirk Brenken <dev@brenken.org>

net/travelmate/files/travelmate.init

@@ -17,7 +17,7 @@ boot()
 
 start_service()
 {
-    if [ $("${trm_init}" enabled; printf ${?}) -eq 0 ]
+    if [ $("${trm_init}" enabled; printf "%u" ${?}) -eq 0 ]
     then
         procd_open_instance "travelmate"
         procd_set_param command "${trm_script}" "${@}"
@@ -27,6 +27,18 @@ start_service()
     fi
 }
 
+stop_service()
+{
+    local rtfile="$(uci -q get travelmate.global.trm_rtfile)"
+
+    rtfile="${rtfile:="/tmp/trm_runtime.json"}"
+    if [ -s "${rtfile}" ]
+    then
+        > "${rtfile}"
+    fi
+    rc_procd start_service
+}
+
 status()
 {
     rc_procd "${trm_script}" status