Fixed XML parsing issue and commented out surface installer

src/GenericDetectors/trackers/compact/RomanPot_example.xml

@@ -77,13 +77,15 @@
   </readouts>
 
   <plugins>
+    <!--
     <plugin name="DD4hep_GenericSurfaceInstallerPlugin">
-      <argument value="ForwardRomanPot"/>
+      <argument value="MyRomanPot"/>
       <argument value="dimension=2"/>
       <argument value="u_x=-1."/>
       <argument value="v_y=-1."/>
       <argument value="n_z=1."/>
     </plugin>	
+    -->
     <plugin name="InstallSurfaceManager"/>
   </plugins>
 

src/GenericDetectors/trackers/src/RomanPot_geo.cpp

@@ -27,7 +27,7 @@ static Ref_t build_detector(Detector& dtor, xml_h e, SensitiveDetector sens) {
   //FIXME: Element [position] has no child of type 'rotation'
   xml_dim_t  pos          = x_det.position();
   double     zoffset      = pos.z_offset();
-  bool       rotated      = pos.rotation();
+  bool       rotated      = pos.attr<bool>(_Unicode(rotation));
   double     pos_out      = pos.vmax();
   double     curr_pos     = pos.v();
   Material   air          = dtor.air();