0.21.1
rename src/make_dafsa.py to src/psl-make-dafsa, add documentation
Makefile.am: use PYTHON when invoking psl-make-dafsa
Add NMake Makefiles for Visual Studio builds
Remove _HIDDEN from src/lookup_string_in_fixed_set.c
meson: Fix running of psl-make-dafsa on Windows
Fix typos
Replace psl2c by psl-make-dafsa
psl.c: Include strings.h only if it is available