Moved MyClear() to beginning of Make() to allow for access of StiTracks by other makers
Added new data members:

- to keep track of track energy losses in the node. Returned value is in GeV
- to keep track of the relative radiation length in the node
- to keep track of the track length in the node
Fix typo, StiSsdDetectorGroup ==> StiSsdDetectorGroup
Merge commit '96551740' into ss
Merge branch 'cvs' into ss
step in setLayerRadius decreased 10 times
step in setLayerRadius decreased 10 times
Min radius was not accounted properly. It is fixed now. Granularity back to 1/1000
Merge branch 'cvs' into hft-dev
StiDetectorBuilder: Added a method to save Sti geometry into a root file. The conversion to drawable objects is done by means of StiMaker/StiDetectorVolume class
StiXXXDetectorBuilder: Save Sti detector geometries as drawable objects in root files when 'debug2' option is specified in BFC chain