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

* git://git.bogomips.org/git-svn:
  git-svn: Show UUID in svn info for added directories with svn 1.5.5
  git-svn: avoid importing nested git repos
  git-svn: fix SVN 1.1.x compatibility
  git-svn: Add --localtime option to "fetch"
  git-svn: better attempt to handle broken symlink updates
  git-svn: handle empty files marked as symlinks in SVN