Resolve "Parameterized Detector Structure"

Closes #37 (closed)

compact/cb_Solenoid.xml

@@ -21,7 +21,7 @@
     </comment>
     <detector id="Solenoid_ID" name="cb_Solenoid" type="cb_Solenoid" insideTrackingVolume="false" vis="cb_SolenoidVis">
 	    <material name="Vacuum"/>  <!-- G4_Galactic -->	    
-      <dimensions rmin="cb_Solenoid_rmin" rmax="cb_Solenoid_rmax" z="cb_Solenoid_z" delta="cb_Solenoid_shift"/>
+      <dimensions rmin="Solenoid_rmin" rmax="Solenoid_rmax" z="b_Solenoid_z" delta="cb_Solenoid_shift"/>
     </detector>
   </detectors>