adab8a9ed0fcf8b77345ebc0ce76062bd350a358 Fix: Correct error when usin…

…g scrolling and RowGroup - column sizing was incorrect

The "fixing" of sizes was reading the grouping row, which was incorrect

Sync to source repo @adab8a9ed0fcf8b77345ebc0ce76062bd350a358

datatables.json

@@ -14,5 +14,5 @@
     ],
     "src-repo": "http://github.com/DataTables/DataTablesSrc",
     "last-tag": "2.1.4",
-    "last-sync": "08b0f7110addabcfd814a9215a18ced31e54a8f5"
+    "last-sync": "adab8a9ed0fcf8b77345ebc0ce76062bd350a358"
 }