Add variables, update file handling

examples/main.chsp

@@ -1,4 +1,3 @@
-// comment lmao
 egg notepad
 init {
     sendMessage "Hello there!"
@@ -9,6 +8,8 @@ init {
     js {
         alert("this is an alert! i repeat - this is an alert!");    
     }
+    val dingus = "dongusify"
+    var dongus = "dingusify"
 }
 
 onRecieving egg * * {