fix tsched crashing when a process gets removed

when a process removes another process, the amount of processes tsched
has decrements, but the for loop doesn't update. a check has been
implemented to check for when the task that's getting looked up doesn't
exist.

halyde/kernel/tsched.lua

@@ -105,7 +105,9 @@ local function runTasks()
       if not result then
         handleError(errorMessage)
       end
-			if coroutine.status(tsched.tasks[i].task) == "dead" then
+      if not tsched.tasks[i] then
+        log.kernel.warn("Attempted to update a non-existent task. This is likely because it was removed.")
+      elseif coroutine.status(tsched.tasks[i].task) == "dead" then
         _PUBLIC.tsched.removeTask(tsched.tasks[i].id)
         --ocelot.log("Removed coroutine")
         i = i - 1

halyde/system.log

@@ -1,4 +0,0 @@
-[00:00:04:12] Debug!
-[00:00:04:19] Info!
-[00:00:04:25] Warning!
-[00:00:04:32] Error!