Moves Strophe.log from strophe.jingle.bundle.js to new file.

index.html

@@ -17,6 +17,7 @@
     <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>
+    <script src="libs/strophe/strophe.util.js"></script>
     <script src="libs/colibri/colibri.focus.js?v=8"></script><!-- colibri focus implementation -->
     <script src="libs/colibri/colibri.session.js?v=1"></script>
     <script src="libs/jquery-ui.js"></script>

libs/strophe/strophe.util.js

@@ -0,0 +1,14 @@
+/**
+ * Strophe logger implementation. Logs from level WARN and above.
+ */
+Strophe.log = function (level, msg) {
+    switch(level) {
+        case Strophe.LogLevel.WARN:
+            console.warn("Strophe: "+msg);
+            break;
+        case Strophe.LogLevel.ERROR:
+        case Strophe.LogLevel.FATAL:
+            console.error("Strophe: "+msg);
+            break;
+    }
+};