Updates the DTLS fingerpring XML namespace.

index.html

     <script src="libs/strophe/strophe.jingle.adapter.js?v=1"></script><!-- strophe.jingle bundles -->
     <script src="libs/strophe/strophe.jingle.bundle.js?v=8"></script>
     <script src="libs/strophe/strophe.jingle.js?v=1"></script>
-    <script src="libs/strophe/strophe.jingle.sdp.js?v=1"></script>
+    <script src="libs/strophe/strophe.jingle.sdp.js?v=2"></script>
     <script src="libs/strophe/strophe.jingle.sdp.util.js?v=1"></script>
     <script src="libs/strophe/strophe.jingle.sessionbase.js?v=1"></script>
     <script src="libs/strophe/strophe.jingle.session.js?v=1"></script>

libs/strophe/strophe.jingle.sdp.js

     var fingerprints = SDPUtil.find_lines(this.media[mediaindex], 'a=fingerprint:', this.session);
     fingerprints.forEach(function(line) {
         tmp = SDPUtil.parse_fingerprint(line);
-        tmp.xmlns = 'urn:xmpp:tmp:jingle:apps:dtls:0';
-        // tmp.xmlns = 'urn:xmpp:jingle:apps:dtls:0'; -- FIXME: update receivers first
+        tmp.xmlns = 'urn:xmpp:jingle:apps:dtls:0';
         elem.c('fingerprint').t(tmp.fingerprint);
         delete tmp.fingerprint;
         line = SDPUtil.find_line(self.media[mediaindex], 'a=setup:', self.session);
         }
     }
     return media;
-};
+};