StiDetector: Added splitIt method to split this volume along the radial direction. Also added a missing assignment for StiElossCalculator in copy
StiDetectorBuilder: Added parameters defining the volume splitting procedure and a call to the splitting routine based on these parameters
Merge branch 'ds-vsplit' into ds-eloss

Conflicts:
	Sti/StiDetectorBuilder.cxx
StiUtilities: Assorted changes in StiDebug class
Technical change to turn on/off the eloss bug fix
Added debugging information
StiMaterial: Invalidated value of radiation length with a very large number in case of unphysical material density
StiDetector: [Cosmetic] Made some methods inline
[Cosmetic] Added comments
cosmetic style only
Inserted asserts
Assorted unidentified changes