Add note of comma bug from Michel R

PLANS

@@ -1,6 +1,8 @@
 Planned things to do in sorttable v3
 
 Full test suite
+Publish test suite and make it easy for someone to run it and report back
+Track runs of the test suite and record data (google analytics?)
 Maintain "does not need a library"
 Maintain "just include sorttable and it works without configuration"
 Maintain compatibility back to IE6
@@ -16,5 +18,9 @@ Provide debug console to see what sorttable is doing
 Make JSHint clean
 Obfuscate </script> in comment to avoid breaking older Firefoxes.
 Replace literal high-bit-set characters in regexp with escapes to avoid unicode hassle: if (text.match(/^-?[\xA2\xA3\xA5\u20A5\u20B9\u20AC\u20A1\u20B5\x24]?[\d,.]+%?$/)) or similar
-Work when there are more then 256 rows
-
+Work when there are more then 256 rows (added to test suite)
+Accessibility stuff
+Fix getinnertext to work with many different types of content (unicode, html, emptiness, text)
+Fix mixed content warning in I by not using javascript:void as link dest: use :// instead or similar
+Numeric comparisons are the wrong way around: should be bb-aa not aa-bb
+A cell with a single "," in it makes sorttable diagnose the column as containing floats. See email from Michel R