change directory structures
Merge branch 'master' of github.com:tailriver/libnumcalc

Conflicts:
	lib/Makefile.am
	lib/Makefile.in
	libnumcalc.vcxproj
	libnumcalc.vcxproj.filters
	tests/interp/Makefile.am
	tests/interp/Makefile.in
add test for dasum
add test for dsum

tests/blas/dasum.c: trivial bug fix
add test for dcopy
add test for lsame