src v6.8.0

Changes to kpkg

• kpkg: dephandler: fix recursive replace hanging dependency handler
• kpkg: feat: switch to nimcrypto, add much faster hasher (resolves #80)
• kpkg: feat: add BLAKE2 and SHA512 support on runFile
• kpkg: build: simplify error handling by moving checks internally
• kpkg: install: switch tarball sums to BLAKE2
• kpkg: remove taskpools

Changes to chkupd

• chkupd: generateJson: add splitIfLimit and ignorePackages arguments

The dist tarball includes generated.nim which allows you to build without generating libarchive bindings with futhark and llvm.
You can build with generated.nim by adding -d:useDist to nimc arguments like so;

sh build.sh -a "-d:useDist" -p kpkg

Full Changelog: v6.7.2...v6.8.0