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

* git://git.bogomips.org/git-svn:
  git-svn: allow `info' command to work offline
  git-svn: info --url [path]
  git-svn info: implement info command
  git-svn: extract reusable code into utility functions
  t9106: fix a race condition that caused svn to miss modifications