Merge branch 'ra/anno' into next

Merge branch 'ra/anno' into next

* ra/anno:
  Add git-annotate, a tool for assigning blame.
  git-svn: 0.9.1: add --version and copyright/license (GPL v2+) information
  contrib/git-svn: add Makefile, test, and associated ignores
  git-svn: fix several corner-case and rare bugs with 'commit'
  contrib/git-svn.txt: add a note about renamed/copied directory support
  git-svn: change ; to && in addremove()
  git-svn: remove any need for the XML::Simple dependency
  git-svn: Allow for more argument types for commit (from..to)
  git-svn: allow --find-copies-harder and -l<num> to be passed on commit
  git-svn: fix a typo in defining the --no-stop-on-copy option