Fixes complaint seen about referencing variable before assignment.

  * All of subdetector to be turned off
	* Tagged as InDetTrackingGeometry-02-05-12-01

2015-07-27 Noemi Calace <noemi.calace@cern.ch>
        * Added new DiscOverlapDescriptor for SCT discs
	* Added robustMode in Pixel and SCT Overlap Descriptors
	* tagged as InDetTrackingGeometry-02-05-09

2015-06-16 Remi Lafaye < Remi.Lafaye -at- cern.ch >
        * Moving XML related stuff to InDetTrackingGeometryXML

2015-06-12 Remi Lafaye < Remi.Lafaye -at- cern.ch >
        * Staged tracking version 1 of python/ConfiguredSLHC_InDetTrackingGeometryBuilder.py
        * XML-based layer providers

2015-06-09 Andreas Salzburger < Andreas.Salzburger -at- cern.ch >
        * new robust TRT layer building - shift material layers outwards
        * tag InDetTrackingGeometry-02-05-07

2015-06-03 Andreas Salzburger < Andreas.Salzburger -at- cern.ch >
        * new robust TRT layer building
        * tag InDetTrackingGeometry-02-05-06

...
(Long ChangeLog diff - truncated)

2015-01-13 Sharka Todorova <sarka.todorova@cern.ch>
	* branch to fix the retrieval of the EnvelopeSvc
	* tagged as InDetTrackingGeometry-02-03-03-01

2014-12-18 Andreas Salzburger < Andreas.Salzburger -at- cern.ch >
        * fixed Zero-pointer problems
        * tag as InDetTrackingGeometry-02-03-03

2014-11-26 Susumu Oda < Susumu.Oda -at cern.ch >
	* update of python/ConfiguredSLHC_InDetTrackingGeometryBuilder.py
        * tag as InDetTrackingGeometry-02-03-02

2014-11-26 Andreas Salzburger < Andreas.Salzburger -at- cern.ch >
        * fix for Zero-pointer in SurfaceArray
        * tag as InDetTrackingGeometry-02-03-01

2014-11-04 Andreas Salzburger < Andreas.Salzburger -at cern.ch >
        * added ApproachDescriptor
        * tag as InDetTrackingGeometry-02-03-00

...
(Long ChangeLog diff - truncated)