Added an Accounts menu item which opens the E-mail preferences.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24021 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/mail/MailApp.cpp

@@ -374,6 +374,10 @@ TMailApp::MessageReceived(BMessage *msg)
 			break;
 		}
 
+		case M_ACCOUNTS:
+			be_roster->Launch("application/x-vnd.Haiku-Mail");
+			break;
+
 		case M_EDIT_SIGNATURE:
 			if (fSigWindow)
 				fSigWindow->Activate(true);

src/apps/mail/MailWindow.cpp

@@ -354,6 +354,10 @@ TMailWindow::TMailWindow(BRect rect, const char* title, TMailApp* app,
 		new BMessage(M_PREFS),','));
 	item->SetTarget(be_app);
 	menu_bar->AddItem(menu);
+	menu->AddItem(item = new BMenuItem(
+		MDR_DIALECT_CHOICE ("Accounts","Accounts") B_UTF8_ELLIPSIS,
+		new BMessage(M_ACCOUNTS),'-'));
+	item->SetTarget(be_app);
 
 	//	
 	// View Menu

src/apps/mail/Messages.h

@@ -100,6 +100,7 @@ enum MENUS {
 	M_SIG_MENU,
 	M_FIND,
 	M_FIND_AGAIN,
+	M_ACCOUNTS,
 
 	// queries
 	M_EDIT_QUERIES,