Merge git://git.bogomips.org/git-svn

* git://git.bogomips.org/git-svn:
  git svn: Doc update for multiple branch and tag paths
  git svn: cleanup t9138-multiple-branches
  git-svn: Canonicalize svn urls to prevent libsvn assertion
  t9138: remove stray dot in test which broke bash
  git-svn: convert globs to regexps for branch destinations
  git svn: Support multiple branch and tag paths in the svn repository.
  Add 'git svn reset' to unwind 'git svn fetch'
  git-svn: speed up find_rev_before
  Add 'git svn help [cmd]' which works outside a repo.
  git-svn: let 'dcommit $rev' work on $rev instead of HEAD