made vtunnel not crash the machine, more actual testing is required

vtunnel/service/vtunnel.lua

@@ -102,6 +102,18 @@ function start()
    os.kill(v)
   end
  end
+ return os.spawn(function()
+  local last = computer.uptime()
+  while true do
+   local tE = {coroutine.yield()}
+   if computer.uptime() > last + cfg.rtimer then
+    for k,v in pairs(proxies) do
+     v.read()
+    end
+    last = computer.uptime()
+   end
+  end
+ end,"vtunnel")
 end
 function vt.stop()
  for k,v in pairs(proxies) do
@@ -147,16 +159,6 @@ function vt.settimer(time)
 end
 
 vt.start = start
-_G.libs.vtunnel = vt
+package.loaded.vtunnel = vt
 
-start()
-local last = computer.uptime()
-while true do
- local tE = {coroutine.yield()}
- if computer.uptime() > last + cfg.rtimer then
-  for k,v in pairs(proxies) do
-   v.read()
-  end
-  last = computer.uptime()
- end
-end
+return vt