v2.0.0-rc2

Changelog

• fa0c8ae change binary name
• 8922a28 docs
• be24f80 get new binary in build
• 59442ec help and version
• c711314 ignore binaries
• f51dbd4 new path
• aae4923 number of files stat
• ce21a89 print index in verify
• 26e009d support for multiple delete files
• 72db71e uniq dirs
• 99408c0 unregister prom stats at shutdown