diff --git a/src/external/TSAI30B3/CAL.RSP b/src/external/tsai-30b3/cal.rsp
similarity index 100%
rename from src/external/TSAI30B3/CAL.RSP
rename to src/external/tsai-30b3/cal.rsp
diff --git a/src/external/TSAI30B3/CAL_EVAL.C b/src/external/tsai-30b3/cal_eval.c
similarity index 100%
rename from src/external/TSAI30B3/CAL_EVAL.C
rename to src/external/tsai-30b3/cal_eval.c
diff --git a/src/external/TSAI30B3/CAL_MAIN.C b/src/external/tsai-30b3/cal_main.c
similarity index 100%
rename from src/external/TSAI30B3/CAL_MAIN.C
rename to src/external/tsai-30b3/cal_main.c
diff --git a/src/external/TSAI30B3/CAL_MAIN.H b/src/external/tsai-30b3/cal_main.h
similarity index 100%
rename from src/external/TSAI30B3/CAL_MAIN.H
rename to src/external/tsai-30b3/cal_main.h
diff --git a/src/external/TSAI30B3/CAL_TRAN.C b/src/external/tsai-30b3/cal_tran.c
similarity index 100%
rename from src/external/TSAI30B3/CAL_TRAN.C
rename to src/external/tsai-30b3/cal_tran.c
diff --git a/src/external/TSAI30B3/CAL_UTIL.C b/src/external/tsai-30b3/cal_util.c
similarity index 100%
rename from src/external/TSAI30B3/CAL_UTIL.C
rename to src/external/tsai-30b3/cal_util.c
diff --git a/src/external/TSAI30B3/CC_CD.DAT b/src/external/tsai-30b3/cc_cd.dat
similarity index 100%
rename from src/external/TSAI30B3/CC_CD.DAT
rename to src/external/tsai-30b3/cc_cd.dat
diff --git a/src/external/TSAI30B3/CC_CPCC.DAT b/src/external/tsai-30b3/cc_cpcc.dat
similarity index 100%
rename from src/external/TSAI30B3/CC_CPCC.DAT
rename to src/external/tsai-30b3/cc_cpcc.dat
diff --git a/src/external/TSAI30B3/CCAL.C b/src/external/tsai-30b3/ccal.c
similarity index 100%
rename from src/external/TSAI30B3/CCAL.C
rename to src/external/tsai-30b3/ccal.c
diff --git a/src/external/TSAI30B3/CCAL.LOG b/src/external/tsai-30b3/ccal.log
similarity index 100%
rename from src/external/TSAI30B3/CCAL.LOG
rename to src/external/tsai-30b3/ccal.log
diff --git a/src/external/TSAI30B3/CCAL.RUN b/src/external/tsai-30b3/ccal.run
similarity index 100%
rename from src/external/TSAI30B3/CCAL.RUN
rename to src/external/tsai-30b3/ccal.run
diff --git a/src/external/TSAI30B3/CCAL_FO.C b/src/external/tsai-30b3/ccal_fo.c
similarity index 100%
rename from src/external/TSAI30B3/CCAL_FO.C
rename to src/external/tsai-30b3/ccal_fo.c
diff --git a/src/external/TSAI30B3/CHANGES.TXT b/src/external/tsai-30b3/changes.txt
similarity index 100%
rename from src/external/TSAI30B3/CHANGES.TXT
rename to src/external/tsai-30b3/changes.txt
diff --git a/src/external/TSAI30B3/CSYN.C b/src/external/tsai-30b3/csyn.c
similarity index 100%
rename from src/external/TSAI30B3/CSYN.C
rename to src/external/tsai-30b3/csyn.c
diff --git a/src/external/TSAI30B3/ECAL.C b/src/external/tsai-30b3/ecal.c
similarity index 100%
rename from src/external/TSAI30B3/ECAL.C
rename to src/external/tsai-30b3/ecal.c
diff --git a/src/external/TSAI30B3/ECAL.LOG b/src/external/tsai-30b3/ecal.log
similarity index 100%
rename from src/external/TSAI30B3/ECAL.LOG
rename to src/external/tsai-30b3/ecal.log
diff --git a/src/external/TSAI30B3/ECAL.RUN b/src/external/tsai-30b3/ecal.run
similarity index 100%
rename from src/external/TSAI30B3/ECAL.RUN
rename to src/external/tsai-30b3/ecal.run
diff --git a/src/external/TSAI30B3/ECALMAIN.C b/src/external/tsai-30b3/ecalmain.c
similarity index 100%
rename from src/external/TSAI30B3/ECALMAIN.C
rename to src/external/tsai-30b3/ecalmain.c
diff --git a/src/external/TSAI30B3/ECCCPCC.DAT b/src/external/tsai-30b3/ecccpcc.dat
similarity index 100%
rename from src/external/TSAI30B3/ECCCPCC.DAT
rename to src/external/tsai-30b3/ecccpcc.dat
diff --git a/src/external/TSAI30B3/ENCCCPCC.DAT b/src/external/tsai-30b3/encccpcc.dat
similarity index 100%
rename from src/external/TSAI30B3/ENCCCPCC.DAT
rename to src/external/tsai-30b3/encccpcc.dat
diff --git a/src/external/TSAI30B3/FAQ.TXT b/src/external/tsai-30b3/faq.txt
similarity index 100%
rename from src/external/TSAI30B3/FAQ.TXT
rename to src/external/tsai-30b3/faq.txt
diff --git a/src/external/TSAI30B3/GASDEV.C b/src/external/tsai-30b3/gasdev.c
similarity index 100%
rename from src/external/TSAI30B3/GASDEV.C
rename to src/external/tsai-30b3/gasdev.c
diff --git a/src/external/TSAI30B3/IC2WC.C b/src/external/tsai-30b3/ic2wc.c
similarity index 100%
rename from src/external/TSAI30B3/IC2WC.C
rename to src/external/tsai-30b3/ic2wc.c
diff --git a/src/external/TSAI30B3/INDEX.TXT b/src/external/tsai-30b3/index.txt
similarity index 100%
rename from src/external/TSAI30B3/INDEX.TXT
rename to src/external/tsai-30b3/index.txt
diff --git a/src/external/TSAI30B3/MAKEFILE.BOR b/src/external/tsai-30b3/makefile.bor
similarity index 100%
rename from src/external/TSAI30B3/MAKEFILE.BOR
rename to src/external/tsai-30b3/makefile.bor
diff --git a/src/external/TSAI30B3/MAKEFILE.UNX b/src/external/tsai-30b3/makefile.unx
similarity index 100%
rename from src/external/TSAI30B3/MAKEFILE.UNX
rename to src/external/tsai-30b3/makefile.unx
diff --git a/src/external/TSAI30B3/MATRIX/MATRIX.C b/src/external/tsai-30b3/matrix/matrix.c
similarity index 100%
rename from src/external/TSAI30B3/MATRIX/MATRIX.C
rename to src/external/tsai-30b3/matrix/matrix.c
diff --git a/src/external/TSAI30B3/MATRIX/MATRIX.H b/src/external/tsai-30b3/matrix/matrix.h
similarity index 100%
rename from src/external/TSAI30B3/MATRIX/MATRIX.H
rename to src/external/tsai-30b3/matrix/matrix.h
diff --git a/src/external/TSAI30B3/MINPACK/DPMPAR.F b/src/external/tsai-30b3/minpack/dpmar.f
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/DPMPAR.F
rename to src/external/tsai-30b3/minpack/dpmar.f
diff --git a/src/external/TSAI30B3/MINPACK/DPMPAR.C b/src/external/tsai-30b3/minpack/dpmpar.c
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/DPMPAR.C
rename to src/external/tsai-30b3/minpack/dpmpar.c
diff --git a/src/external/TSAI30B3/MINPACK/ENORM.C b/src/external/tsai-30b3/minpack/enorm.c
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/ENORM.C
rename to src/external/tsai-30b3/minpack/enorm.c
diff --git a/src/external/TSAI30B3/MINPACK/ENORM.F b/src/external/tsai-30b3/minpack/enorm.f
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/ENORM.F
rename to src/external/tsai-30b3/minpack/enorm.f
diff --git a/src/external/TSAI30B3/MINPACK/F2C.H b/src/external/tsai-30b3/minpack/f2c.h
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/F2C.H
rename to src/external/tsai-30b3/minpack/f2c.h
diff --git a/src/external/TSAI30B3/MINPACK/F2C.PS b/src/external/tsai-30b3/minpack/f2c.ps
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/F2C.PS
rename to src/external/tsai-30b3/minpack/f2c.ps
diff --git a/src/external/TSAI30B3/MINPACK/FDJAC2.C b/src/external/tsai-30b3/minpack/fdjac2.c
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/FDJAC2.C
rename to src/external/tsai-30b3/minpack/fdjac2.c
diff --git a/src/external/TSAI30B3/MINPACK/FDJAC2.F b/src/external/tsai-30b3/minpack/fdjac2.f
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/FDJAC2.F
rename to src/external/tsai-30b3/minpack/fdjac2.f
diff --git a/src/external/TSAI30B3/MINPACK/LMDIF.C b/src/external/tsai-30b3/minpack/lmdif.c
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/LMDIF.C
rename to src/external/tsai-30b3/minpack/lmdif.c
diff --git a/src/external/TSAI30B3/MINPACK/LMDIF.F b/src/external/tsai-30b3/minpack/lmdif.f
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/LMDIF.F
rename to src/external/tsai-30b3/minpack/lmdif.f
diff --git a/src/external/TSAI30B3/MINPACK/LMPAR.C b/src/external/tsai-30b3/minpack/lmpar.c
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/LMPAR.C
rename to src/external/tsai-30b3/minpack/lmpar.c
diff --git a/src/external/TSAI30B3/MINPACK/LMPAR.F b/src/external/tsai-30b3/minpack/lmpar.f
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/LMPAR.F
rename to src/external/tsai-30b3/minpack/lmpar.f
diff --git a/src/external/TSAI30B3/MINPACK/QRFAC.C b/src/external/tsai-30b3/minpack/qrfac.c
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/QRFAC.C
rename to src/external/tsai-30b3/minpack/qrfac.c
diff --git a/src/external/TSAI30B3/MINPACK/QRFAC.F b/src/external/tsai-30b3/minpack/qrfac.f
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/QRFAC.F
rename to src/external/tsai-30b3/minpack/qrfac.f
diff --git a/src/external/TSAI30B3/MINPACK/QRSOLV.C b/src/external/tsai-30b3/minpack/qrsolv.c
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/QRSOLV.C
rename to src/external/tsai-30b3/minpack/qrsolv.c
diff --git a/src/external/TSAI30B3/MINPACK/QRSOLV.F b/src/external/tsai-30b3/minpack/qrsolv.f
similarity index 100%
rename from src/external/TSAI30B3/MINPACK/QRSOLV.F
rename to src/external/tsai-30b3/minpack/qrsolv.f
diff --git a/src/external/TSAI30B3/MINPACK.RSP b/src/external/tsai-30b3/minpark.rsp
similarity index 100%
rename from src/external/TSAI30B3/MINPACK.RSP
rename to src/external/tsai-30b3/minpark.rsp
diff --git a/src/external/TSAI30B3/NCC_CD.DAT b/src/external/tsai-30b3/ncc_cd.dat
similarity index 100%
rename from src/external/TSAI30B3/NCC_CD.DAT
rename to src/external/tsai-30b3/ncc_cd.dat
diff --git a/src/external/TSAI30B3/NCC_CPCC.DAT b/src/external/tsai-30b3/ncc_cpcc.dat
similarity index 100%
rename from src/external/TSAI30B3/NCC_CPCC.DAT
rename to src/external/tsai-30b3/ncc_cpcc.dat
diff --git a/src/external/TSAI30B3/NCCAL.C b/src/external/tsai-30b3/nccal.c
similarity index 100%
rename from src/external/TSAI30B3/NCCAL.C
rename to src/external/tsai-30b3/nccal.c
diff --git a/src/external/TSAI30B3/NCCAL.LOG b/src/external/tsai-30b3/nccal.log
similarity index 100%
rename from src/external/TSAI30B3/NCCAL.LOG
rename to src/external/tsai-30b3/nccal.log
diff --git a/src/external/TSAI30B3/NCCAL.RUN b/src/external/tsai-30b3/nccal.run
similarity index 100%
rename from src/external/TSAI30B3/NCCAL.RUN
rename to src/external/tsai-30b3/nccal.run
diff --git a/src/external/TSAI30B3/NCCAL_FO.C b/src/external/tsai-30b3/nccal_fo.c
similarity index 100%
rename from src/external/TSAI30B3/NCCAL_FO.C
rename to src/external/tsai-30b3/nccal_fo.c
diff --git a/src/external/TSAI30B3/NCSYN.C b/src/external/tsai-30b3/ncsyn.c
similarity index 100%
rename from src/external/TSAI30B3/NCSYN.C
rename to src/external/tsai-30b3/ncsyn.c
diff --git a/src/external/TSAI30B3/NOTES.TXT b/src/external/tsai-30b3/notes.txt
similarity index 100%
rename from src/external/TSAI30B3/NOTES.TXT
rename to src/external/tsai-30b3/notes.txt
diff --git a/src/external/TSAI30B3/WC2IC.C b/src/external/tsai-30b3/wc2ic.c
similarity index 100%
rename from src/external/TSAI30B3/WC2IC.C
rename to src/external/tsai-30b3/wc2ic.c
diff --git a/src/external/TSAI30B3/XFD2XFU.C b/src/external/tsai-30b3/xfd2xfu.c
similarity index 100%
rename from src/external/TSAI30B3/XFD2XFU.C
rename to src/external/tsai-30b3/xfd2xfu.c