CC-1960: Internationalize Airtime / Support translations

-added i18n to serverbrowser.js
-fixed small typo in SmartBlockCriteria.php

airtime_mvc/public/js/serverbrowse/AIRTIME_DEV_README

@@ -0,0 +1,34 @@
+Before you overwrite serverbrowser.js, note that we have changed a few lines
+in this file.
+
+Running a diff between the original serverbrowser.js and our modified one:
+
+denise@denise-DX4860:~/airtime/airtime_mvc/public/js/serverbrowse$ diff -u serverbrowser_orig.js serverbrowser.js
+--- serverbrowser_orig.js	2012-11-28 11:42:43.250237696 -0500
++++ serverbrowser.js	2012-11-28 11:44:57.738242930 -0500
+@@ -65,14 +65,14 @@
+                 modal: true,
+                 buttons: [
+                     {
+-                        text: "Cancel",
++                        text: $.i18n._("Cancel"),
+                         "class": "btn",
+                         click: function() {
+                             browserDlg.dialog("close");
+                         }
+                     },
+                     {
+-                        text: "Open",
++                        text: $.i18n._("Open"),
+                         "class": "btn",
+                         click: function() {
+                             doneOk();
+@@ -123,7 +123,7 @@
+                 function() { $(this).removeClass('ui-state-hover'); }
+             );
+ 
+-            var enterLabel = $('<span></span>').text('Look in: ').appendTo(enterButton.clone(false).appendTo(enterPathDiv));
++            var enterLabel = $('<span></span>').text($.i18n._('Look in')+': ').appendTo(enterButton.clone(false).appendTo(enterPathDiv));
+ 
+             var enterText = $('<input type="text">').keypress(function(e) {
+                 if (e.keyCode == '13') {