added the ability for software to change the computer.pullSignal timeout

module/sched.lua

@@ -58,4 +58,11 @@ function os.getenv(k) -- gets a process' *k* environment variable
   return tTasks[cPid].e[k]
  end
 end
+function os.setTimeout(n)
+ if type(n) == "number" and n >= 0 then
+  nTimeout = n
+  return true
+ end
+ return false
+end
 end