0.9.0

• Experimental git worktree feature support
• Set correct index file when working tree repository is used
• Throw exceptions on unresolved revisions (thanks to Nicolay Mitropolsky)
• cp command doc updates (thanks to Nicolay Mitropolsky)
• Compare only neighbour files in reduce command
• Add options for committing files found in reduce command
• Create empty files for files that were absent in base branch during switch
• Introduce stats with information about number of bunch files used
• Show deleted files in check command
• Use since-ref in check instead of always using HEAD
• Add third-party libraries licenses
• Exit with non-zero exit code if problems found
• Filter out out directory from processing during switch