Minor text fixes

source/ArmarXGui/gui-plugins/ScenarioManager/gui/openscenarioview.ui

@@ -29,7 +29,7 @@
      <item>
       <widget class="QLabel" name="label">
        <property name="text">
-        <string>If you cant find your Scenario maybe you need to open the Package first: </string>
+        <string>If you cannot find a scenario, maybe you need to open the package first: </string>
        </property>
       </widget>
      </item>

source/ArmarXGui/gui-plugins/ScenarioManager/gui/packageadderview.cpp

@@ -52,7 +52,7 @@ void PackageAdderView::on_okButton_clicked()
     else
     {
         QMessageBox msgBox;
-        msgBox.setText("Please insert a valid Package Name");
+        msgBox.setText("Please insert a valid package name");
         msgBox.exec();
     }
 }