Merge branch 'ar/batch-cat' into next

Merge branch 'ar/batch-cat' into next

* ar/batch-cat:
  change quoting in test t1006-cat-file.sh
  builtin-cat-file.c: use parse_options()
  git-svn: Speed up fetch
  Git.pm: Add hash_and_insert_object and cat_blob
  Git.pm: Add command_bidi_pipe and command_close_bidi_pipe
  git-hash-object: Add --stdin-paths option
  Add more tests for git hash-object
  Move git-hash-object tests from t5303 to t1007
  git-cat-file: Add --batch option
  git-cat-file: Add --batch-check option
  git-cat-file: Make option parsing a little more flexible
  git-cat-file: Small refactor of cmd_cat_file
  Add tests for git cat-file