StiIstDetectorBuilder: Added flag to build ideal IST geoemtry
StiIstDetectorBuilder: We need to set the current gGeometry path before extracting any info about current volume position
StiIstDetectorBuilder: Yaping's changes
Merge branch 'ds-ist'
Updated in accordance with the nee pileup trees stucture.
Updated the instructions.
Process StiMaker attributes to create test volumes
Added new options for Sti test to check overlapping and non-overlapping tubes
In StiMaker construct the PXL detector using the option for ideal/survey geometry transformations. The default is to use a non-ideal survey geometry
StiMaker/StiDetectorVolume.cxx: Style and cleanup changes
Moved MyClear() to beginning of Make() to allow for access of StiTracks by other makers
Use SstDbMaker and SstDetectorBuilder when building SST in StiMaker
Not verified changed! Rotated matrix by 90 degrees
Slighlty improved colors used to draw Sti volumes
StiMaker: Minor changes