Updated contrib/vim/patchreview.* to version 0.2.1 1) adds a :DiffReview command to review code changes in the current workspace. 2) removes the need to have patchutils (specifically filterdiff) installed on the system by implementing patch extraction in pure vim script.

httprepo: normalize output from unbundle with ssh Lines from the remote are prefixed with 'remote: ' and written locally using ui.status, similar to what sshrepo does.