Merged my-710pre4-bril-geometry from repository robervalwalsh
initial commit of PLT simulation stuff
Merged PLTMaster_710pre4 from repository skaplanhex
updated OscarProducer.cc to 7_1_0 version
add bcm1f stuff so the code compiles
fix plane placement and telescope numbering
added comments and cleaned up code
plt geometry corrected for new tracker volume
another geometry change...
create digi class in DataFormats/PLTDigi package, update geometry and simulation class