Updated Copyright headers

LICENSE

amath.1

builddeb

builddebdev

catalog/english/amath-help.ct

catalog/english/amath-text.ct

configure

src/amath.h

src/amathc.h

src/amatht.h

src/clib/alloccpy.c

src/clib/amathc.3

src/clib/mem.c

src/clib/memset.c

src/clib/strcmp.c

src/clib/strlen.c

src/clib/untag.c

src/cplex/amathi.3

src/cplex/cacos.c

src/cplex/cacosh.c