renamed language directories to ICU standard, upgrade script, no longer promoting english at top of list in languages tab, en now en_GB, encompasses Canadian and English English

src/languages.js

@@ -32,15 +32,9 @@ Languages.list = function(callback) {
 				}
 			});
 		}, function(err) {
-			// Float "en" to the top, otherwise sort alphabetically
+			// Sort alphabetically
 			languages = languages.sort(function(a, b) {
-				if (a.code === 'en') {
-					return -1;
-				} else if (b.code === 'en') {
-					return 1;
-				} else {
-					return a.code > b.code;
-				}
+				return a.code > b.code ? 1 : -1;
 			});
 
 			callback(err, languages);