Merge patchbomb script.

Polish patchbomb script. diffstat output is now a non-default option. The hgrc file can now contain default information for the patchbomb script. Date generation is fixed.

Get patchbomb script to not use MIME attachments. Adding patches as attachments makes it difficult or impossible for some mail clients to quote them effectively.

Add patchbomb script.

Merge Chris's changes with mine.

addremove was not correctly finding removed files when given a list of files to look at. These end up with a src of 'f' from walk() but no longer exist on the filesystem. Index: mine/mercurial/commands.py ===================================================================

dirstate walking optimizations The repo walking code introduces a number of calls to dirstate.map.copy(), significantly slowing down the walk on large trees. When a list of files is passed to the walking code, we should only look at map entries relevant to the file list passed in. dirstate.filterfiles() is added to return a subset of the dirstate map. The subset includes in files passed in, and if one of the files requested is actually a directory, it includes any files inside that directory tree. This brings the time for hg diff Makefile down from 1.7s to .3s on a linux kernel repo. Also, the diff command was unconditionally calling makewalk, leading to an extra pass through repo.changes. This patch avoids the call to makewalk when commands.diff isn't given a list of patterns, cutting the time for hg diff (with no args) in half. Index: mine/mercurial/hg.py ===================================================================

Merge with mpm.

Teach walk code about absolute paths. The first consequence of this is that absolute and relative paths now all work in the same way. The second is that paths that lie outside the repository now cause an error to be reported, instead of something arbitrary and expensive being done. Internally, all of the serious work is in the util package. The new canonpath function takes an arbitrary path and either returns a canonical path or raises an error. Because it needs to know where the repository root is, it must be fed a repository or dirstate object, which has given commands.matchpats and friends a new parameter to pass along. The util.matcher function uses this to canonicalise globs and relative path names. Meanwhile, I've moved the Abort exception from commands to util, and killed off the redundant util.CommandError exception.

Kill dead function.