ux: change application start

- make the wizard a widget in the mainwindow navstack
- remove findRingAccount, any account present should not invoke the
  wizard

Change-Id: I5341d9060e17b74ac253619d70aad6d2d9a93874
Reviewed-by: Isa Nanic <isa.nanic@savoirfairelinux.com>
diff --git a/navwidget.h b/navwidget.h
index 80b6761..189250b 100644
--- a/navwidget.h
+++ b/navwidget.h
@@ -22,6 +22,7 @@
 
 enum ScreenEnum {
     //DO not add main widget screen before callScreen
+    WizardScreen,
     CallScreen,
     ConfScreen,
     END