Add optional ability to change key length at runtime via cli option.
Include key length property in archive header.
Fix header HMAC to include salt, nonce and key length properties.
Retain backward compatibility to handle older format archives.
Fix compilation of AES ASM code.
Multi instruction set XXhash build with runtime selection.
Extend CPUID code to detect more instruction sets.
Add options for BLAKE2 hash.
Move GCC builtins into utils header.
Bump file format version number due to extended digest flags.
Add descriptions to digest list.
Enable building with older openssl (at least 0.9.8e).
Add variants of missing functions in older openssl versions.
Allow proper linking with libraries in alternate locations and setting RUNPATH.
Increase hash rounds for nonce generation.
Avoid different optimization flags for Dedupe sources.
Fix liberal mixing of uint64_t and int64_t (should all be uint64_t).
Fix corner case crash when decompressing.
Avoid transposing below-threshold spans. Reduces compression ratio.
Use little-endian storage format for numbers to optimize for x86.
Improve embedded table detection.
Reduce header sizes.
Get rid of Gcc's LTO flag. Causes a performance drop.
Fix preprocessing behavior when LZP does not compress but Delta2 works.
