largefiles: show progress when checking standin hashes in outgoing changesets This checking can take a huge amount of time and we should give user a hint that something is going on.

unbundle: support bundle2 files This adds support for bundle2 files to the unbundle command.

pullbundle2: extract addchangegroup result combining into its own function This will also be used for 'hg unbundle'

histedit: add a test to show that issue4251 is fixed (issue4251) This will help us not regress this case in the future.

commands.debugbundle: bundle2 support This enables debugbundle to print supporting info for bundle2 files.

largefiles: cleanup overrideadd() This was a remnant of the code prior to overridding cmdutil.add().

largefiles: enable subrepo support for add The --large, --normal and --lfsize args couldn't be passed to a subrepo before, and files in the subrepos would be added silently (if -v wasn't specified) as normal files. As an added bonus, 'hg add --dry-run' no longer prints that largefiles would also be added as normal files as well.