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

* git://git.bogomips.org/git-svn: git-svn: allow subset of branches/tags to be specified in glob spec git-svn: allow UUID to be manually remapped via rewriteUUID git-svn: update svn mergeinfo test suite git-svn: document --username/commit-url for branch/tag git-svn: add --username/commit-url options for branch/tag git-svn: respect commiturl option for branch/tag git-svn: fix mismatched src/dst errors for branch/tag git-svn: handle merge-base failures git-svn: ignore changeless commits when checking for a cherry-pick