[PATCH 00/23] http*: refactor (v5)

Junio, this replaces the entire rc/http-push topic.

Changes from the previous patch series:

- fix return values of fetch_indices() in http-push.c, as highlighted
  by Clemens (patch #20)

- added set slot->local to NULL patch (patch #3)

- set slot->local to NULL in http.c::http_request() (patch #15)

- set slot->local to NULL in http.c::release_http_pack_request() and
  http.c::finish_http_pack_request() (patch #22)

Christian Couder (1):
  http-push: fix missing "#ifdef USE_CURL_MULTI" around
    "is_running_queue"

Mike Hommey (7):
  Don't expect verify_pack() callers to set pack_size
  transport.c::get_refs_via_curl(): do not leak refs_url
  http.c: new functions for the http API
  transport.c::get_refs_via_curl(): use the new http API
  http.c::http_fetch_ref(): use the new http API
  http-push.c::remote_exists(): use the new http API
  http-push.c::fetch_symref(): use the new http API

Tay Ray Chuan (15):
  t5540-http-push: test fetching of loose objects
  t5540-http-push: test fetching of packed objects
  http*: cleanup slot->local after fclose
  http-push: send out fetch requests on queue
  t5550-http-fetch: test fetching of packed objects
  http-push, http-walker: style fixes
  http-walker: verify remote packs
  http*: copy string returned by sha1_to_hex
  http-push: do not SEGV after fetching a bad pack idx file
  http*: move common variables and macros to http.[ch]
  http: create function end_url_with_slash
  http*: add http_get_info_packs
  http: use new http API in fetch_index()
  http*: add helper methods for fetching packs
  http*: add helper methods for fetching objects (loose)

 http-push.c           |  579 ++++++++---------------------------------------
 http-walker.c         |  533 +++++++------------------------------------
 http.c                |  601 +++++++++++++++++++++++++++++++++++++++++++++++--
 http.h                |   85 +++++++
 pack-check.c          |    8 +-
 t/t5540-http-push.sh  |   36 +++
 t/t5550-http-fetch.sh |    8 +
 transport.c           |   33 +--
 8 files changed, 902 insertions(+), 981 deletions(-)