* FileSnapshot: fix bug with timestamp thresholding
* In LockFile#waitForStatChange wait in units of file time resolution
* Cache FileStoreAttributeCache per directory
* Fix FileSnapshot#save(long) and FileSnapshot#save(Instant)
* Persist minimal racy threshold and allow manual configuration
* Measure minimum racy interval to auto-configure FileSnapshot
* Fix error log message in ObjectDirectory.handlePackError()
* Properly format pack checksums in PackFile.idx()
* Cancel gc if thread was interrupted
* PackFile: report correct message for checksum mismatch
* ObjectDirectory: Clean up logging
* Bazel: Stop using native.git_repository
* ObjectDirectory: extra logging on packfile exceptions
* RepoCommand: Preserve executable bit in <copyfile>
* RepoCommand.RemoteReader: Add method to read contents and mode of file
* RepoCommandTest: Extract method to assert file contents
* Enable writing bitmaps during GC by default.
* Enable writing pack indexes with bitmaps in the GC.
* Enable serving upload requests using bitmaps.
* Support creating pack bitmap indexes in PackWriter.
* Added read/write support for pack bitmap index.