Update luajit submodule.

CrossVR · CrossVR · commit 9a47507383f9 · 2017-03-30T21:38:24.000+02:00
diff --git a/src/Externals/luajit b/src/Externals/luajit
@@ -1 +1 @@
-Subproject commit 490372a1e57c39494e138ace21bcacf7f1d8b5b2
+Subproject commit e018f4f5f5fc721f78f9d2fdb6cb5ef9ecbb21e5
