Makefile: Sort tools
Handle unknown digest and algorithm properly
Add BE16/BE32 macros instead of htons/htonl
Make algorithm an option instead of key prefix
Use 0 instead of -1 as unspecified algorithm
README: Add link to blog post
nsec: Fail on unexpected options
tlsa: Fix usage message
ds: Fix usage message
tlsa: Silence gcc warning
tlsa: Use case-insensitive option arguments
Add install target
Update year in LICENSE
rrsig: Fix end time option (-e)
Use arg.h for option handling
Handle wildcard domains in dname_labels
base64: Remove unnecessary cast
base64: Include '=' in table explicitly