Unify text on buttons that open the options dialog

We have many buttons that open the options dialog, and many of these use
different terms.

Change-Id: I073fe2a23569c6f4174a2fb6567359c89cb2427c
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>

src/plugins/projectexplorer/kitconfigwidget.cpp

@@ -53,4 +53,9 @@ void KitConfigWidget::setMutable(bool b)
     m_kit->setMutable(m_kitInformation->id(), b);
 }
 
+QString KitConfigWidget::msgManage()
+{
+    return tr("Manage...");
+}
+
 } // namespace ProjectExplorer