Merge branch 'maint'

* maint:
  GIT v1.5.1.3
  send-email documentation: clarify --smtp-server
  git.7: Mention preformatted html doc location
  Clarify SubmittingPatches Checklist
  git-svn: Add 'find-rev' command
  Fix symlink handling in git-svn, related to PerlIO

diff --cc Documentation/SubmittingPatches
Simple merge

diff --cc Documentation/git.txt
Simple merge