moved alll kinds of stuff in prep for open srcing.

meds2pdb/read_annot_file.cpp

meds2pdb/rewriter.cpp

meds2pdb/rewriter.h

meds2pdb/spri_alloc.cpp

meds2pdb/spri_alloc.h

meds2pdb/stackref_hash.cpp

meds2pdb/stackref_hash.h

meds2pdb/strata_defines.h

rida/SConscript

rida/SConstruct

rida/rida.cpp

thanos/SConscript

thanos/SConstruct

thanos/thanos.cpp

tools/SConscript

tools/safefn/fill_in_safefn.cpp

tools/safefr/fill_in_safefr.cpp

tools/selective_cfi/SConscript

xform/Makefile.in