Have advance_offset leave a full side buffer
Use FUSE_OPT_KEY_DISCARD
Install to /usr (not /usr/local) by default 
Emphasize "N times faster" performance ratio
Add --passphrase option
Add ERROR_CODE_PASSPHRASE_REQUIRED
Add ERROR_CODE_GENERIC

Rename s/swap_libarchive_state/swap/ method
Optimize reads past the end-of-file
Rename s/g_nodes/g_nodes_by_name/ variable
Add re-usable side buffers 
Group command-line options into a struct
Add "-o redact" command line option

Remove Makefile CXXFLAGS -O3 override
Add Makefile PKG_CONFIG variable