Add a tool to fix common mistakes.

For example, '.' is often substituted with 'N'.

fixup.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+
+# * Copyright 2011 Alistair Buxton <a.j.buxton@gmail.com>
+# *
+# * License: This program is free software; you can redistribute it and/or
+# * modify it under the terms of the GNU General Public License as published
+# * by the Free Software Foundation; either version 3 of the License, or (at
+# * your option) any later version. This program is distributed in the hope
+# * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# * GNU General Public License for more details.
+
+# This fixes common errors made by the deconvolution process.
+
+import sys
+
+if __name__ == '__main__':
+
+    try:
+        while True:
+            packet = [x for x in sys.stdin.read(42)]
+            for i in range(1,42):
+                if packet[i] == 'N' and packet[i-1].islower():
+                    packet[i] = '.'
+            sys.stdout.write("".join(packet))
+            sys.stdout.flush()
+
+
+    except IOError:
+        exit(0)
+
+