Support i18n with multiple links

We can now pass a variable number of hrefs into i18n_with_links rather
than just one.

js/views/install_view.js

@@ -15,9 +15,9 @@
                 installWelcome: i18n('installWelcome'),
                 installTagline: i18n('installTagline'),
                 installGetStartedButton: i18n('installGetStartedButton'),
-                installSignalLink: this.i18n_with_link('installSignalLinks', playStoreHref, appStoreHref),
+                installSignalLink: this.i18n_with_links('installSignalLinks', playStoreHref, appStoreHref),
                 installIHaveSignalButton: i18n('installGotIt'),
-                installFollowUs: this.i18n_with_link('installFollowUs', twitterHref),
+                installFollowUs: this.i18n_with_links('installFollowUs', twitterHref),
                 installAndroidInstructions: i18n('installAndroidInstructions'),
                 installLinkingWithNumber: i18n('installLinkingWithNumber'),
                 installComputerName: i18n('installComputerName'),

js/views/whisper_view.js

@@ -57,9 +57,12 @@
                 this.$el.closest('body').append(dialog.el);
             }.bind(this));
         },
-        i18n_with_link: function(message, href) {
-            var attrs = 'class="link" href="' + encodeURI(href) + '" target="_blank"';
-            return i18n(message, attrs);
+        i18n_with_links: function() {
+            var args = Array.prototype.slice.call(arguments);
+            for (var i=1; i < args.length; ++i) {
+              args[i] = 'class="link" href="' + encodeURI(args[i]) + '" target="_blank"';
+            }
+            return i18n(args[0], args.slice(1));
         }
     },{
         // Class attributes