GIT 1.4.0-rc2

I've tagged the tip of "master" as v1.4.0-rc2.

Many documentation updates, new and much improved gitk, git aliases stored in .git/config, and most importantly, http-fetch fix.

I think we are getting there; expect real 1.4.0 this Saturday my time. I am planning to throw in a bit of surprise in it as well.

* Shortlog since 1.4.0-rc1 *

Francis Daly:
      Some doc typo fixes
      config.txt grammar, typo, and asciidoc fixes
      git-cvsserver asciidoc formatting tweaks

Horst H. von Brand:
      Cleanup git-send-email.perl:extract_valid_email

Johannes Schindelin and Petr Baudis:
      git aliases stored in .git/config

Jon Loeliger:
      Refactor git_tcp_connect() functions a little.

Jonas Fonseca:
      Misc doc improvements
      Document git-ls-tree --fullname

Junio C Hamano:
      git alias: try alias last.
      send-email: be more lenient and just catch obvious mistakes.
      send-email: a bit more careful domain regexp.
      git-format-patch: add --output-directory long option again
      HTTP cleanup
      Make index file locking code reusable to others.
      refs.c: convert it to use lockfile interface.
      ref-log: style fixes.
      Documentation: add missing docs make check-docs found.
      make clean: remove dist-doc targets.
      Documentation: git-ls-tree (typofix)
      Documentation: add another example to git-ls-files

Nick Hengeveld:
      HTTP cleanup
      http-fetch: fix possible segfault

Paul Mackerras:
      gitk: Make a row of controls for controlling highlighting
      gitk: Highlight entries in the file list as well
      gitk: Highlight paths of interest in tree view as well
      gitk: First cut at a search function in the patch/file display window
      gitk: Improve the text window search function
      gitk: Move "pickaxe" find function to highlight facility
      gitk: Fix bug in highlight stuff when no line is selected
      gitk: Provide ability to highlight based on relationship to selected commit
      gitk: Add a goto next/previous highlighted commit function
      gitk: Show nearby tags
      gitk: Show branch name(s) as well, if "show nearby tags" is enabled
      gitk: Re-read the descendent/ancestor tag & head info on update

Petr Baudis:
      Document git aliases support
      Documentation: git aliases

Rene Scharfe:
      Off-by-one error in get_path_prefix(), found by Valgrind

Robert Fitzsimons:
      builtin-grep: pass ignore case option to external grep