Make debug log available from the installer

Move debug log from inbox view to app view so it can be opened regardless of
whether we are showing the inbox view or the installer.

// FREEBIE

js/views/app_view.js

@@ -18,6 +18,17 @@
           this.el.append(view.el);
           this.delegateEvents();
         },
+        openDebugLog: function() {
+            this.closeDebugLog();
+            this.debugLogView = new Whisper.DebugLogView();
+            this.debugLogView.$el.appendTo(this.el);
+        },
+        closeDebugLog: function() {
+          if (this.debugLogView) {
+            this.debugLogView.remove();
+            this.debugLogView = null;
+          }
+        },
         openInstaller: function() {
           this.closeInstaller();
           this.installView = new Whisper.InstallView();