csv2json: assume csv files are in latin1 encoding.

This probably isn't a reasonable assumption, but it's probably true for
English-language speakers parsing csv files produced by Excel.
diff --git a/csv2json.py b/csv2json.py
index 8066b69..ecfe047 100755
--- a/csv2json.py
+++ b/csv2json.py
@@ -4,7 +4,7 @@
 import sys
 
 c = csv.reader(sys.stdin)
-rows = list(c)
+rows = list([[col.decode('latin1') for col in r] for r in c])
 print 'jsonp('
 json.dump(rows, sys.stdout, indent=2)
 print ');'