8f9f9c13b0cfdf6a7f23c796aae7d5d7fc450d6b Fix: Columns with purely boo…

…lean data were not sorting correctly as they were treated as empty

https://datatables.net/forums/discussion/79448/datatables-2-1-issue-with-boolean-value-in-table-draw#latest

Sync to source repo @8f9f9c13b0cfdf6a7f23c796aae7d5d7fc450d6b

datatables.json

@@ -14,5 +14,5 @@
     ],
     "src-repo": "http://github.com/DataTables/DataTablesSrc",
     "last-tag": "2.1.3",
-    "last-sync": "192e191def3e788802f3a397f4bd0fe8a2c5b09c"
+    "last-sync": "8f9f9c13b0cfdf6a7f23c796aae7d5d7fc450d6b"
 }