[REROLL PATCH 0/8] Remote helpers smart transport extensions

This is rerolled version of remote helpers exensions. The changes from RFC patch v3 are:

- Enable stream buffering where possible.
- Pass the connection directly, not indirected via disown method.
- "invoke/connect" -> "connect" in commit message.
- Don't try to send disconnect command after connecting.

This series is based on same version as appiled previous version is.

Ilari Liusvaara (8):
  Add remote helper debug mode
  Support mandatory capabilities
  Pass unknown protocols to external protocol handlers
  Refactor git transport options parsing
  Support taking over transports
  Support remote helpers implementing smart transports
  Support remote archive from external protocol helpers
  Remove special casing of http, https and ftp

 .gitignore                           |    4 +
 Documentation/git-remote-helpers.txt |   30 ++++-
 Makefile                             |   24 +++-
 builtin-archive.c                    |   17 ++-
 transport-helper.c                   |  291 ++++++++++++++++++++++++++++++----
 transport.c                          |  228 +++++++++++++++++++++------
 transport.h                          |   22 +++
 7 files changed, 523 insertions(+), 93 deletions(-)