Updated perl bindings link
Switch description and path reporting
Merge pull request #2474 from ethomson/clar_file_report

Switch description and message reporting in `clar__assert_equal_file`
Merge pull request #2472 from jacquesg/perl-link

Update perl bindings link
Introduce git_rebase to set up a rebase session

Introduce `git_rebase` to set up a rebase session that can
then be continued.  Immediately, only merge-type rebase is
supported.
Introduce git_rebase_abort

Abort an in-progress rebase and move the working directory and
repository back to the ORIG_HEAD state.
Introduce git_rebase_next

git_rebase_next will apply the next patch (or cherry-pick)
operation, leaving the results checked out in the index / working
directory so that consumers can resolve any conflicts, as appropriate.
fixup