Fixes

[s3u]

1. Support multiple requests made for the same statement - earlier we were dropping all but the lost. Several users found the text about gutter confusing. So, drop all that.

2. Also fix a bug where carr in "f" in the script below was getting substituted.

   a = true;
   b = false;
   c = [1,2,3,4];
   d = [1, true, 3, false];
   e = "hello";
   f = {
   "a": "A",
   "b": "B",
   "carr": ["a", "b", "c"]
   };
   g = {};
   return f;

The result should be

{
"a": "A",
"b": "B",
"carr": [
  "a",
  "b",
  "c"
 ]
}

But the result before the fix was

{
  "a": "A",
  "b": "B",
  "carr": [
    true,
    "b",
    [1,2,3,4]]
} 

1. Fix number parsing bugs.