More progress.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3936 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/util/StringUtil.as

@@ -0,0 +1,10 @@
+package com.threerings.util {
+
+public class StringUtil
+{
+    public static function isBlank (str :String) :Boolean
+    {
+        return (str == null) || (str.search("\\S") == -1);
+    }
+}
+}