Mercurial 4.8 release

This page consists of 4.8 release which is work in progress.

1. New Features

New config option commands.resolve.mark-check to warn or abort on resolve --mark when files still have conflict markers
New config option commands.resolve.confirm to confirm before performing action when no filename is passed.

Command templates (aka formatter templates) are stabilized. See hg help <command> -v for details.
Several performance optimizations on fileset query.
Improvements to zsh completions:
- Completing files, shelve and unshelve commands
- Completing merge tools
- Completing added and removed (in addition to changed) files to commit and diff commands
- Numerous updates to flags and descriptions
- Fixes for minor issues and a couple of performance improvements

Emails from the patchbomb extension will always be printed as though they are iso-8859-1 if they're not valid us-ascii. Previously, previewed emails were always claimed to be us-ascii and might contain invalid byte sequences.
'hg debugdata' no longer accepts the path to a revlog file.
"{abspath}" and "{file}" in generic templates are renamed to "{path}". Any "{path}" is a repository-absolute path. Use "{path|relpath}" to convert it to a filesystem path.
"{copy}" in status command template is renamed to "{source}".
A repository will no longer use shared storage if it has a ".hg/sharedpath" file but no entry in ".hg/requires" saying it is shared.
This change should not have any end-user impact, as all shared repos should have a ".hg/requires" file indicating this.
"{oldhashes}" and "{newhashes}" in journal template are renamed to "{oldnodes}" and "{newnodes}" respectively.