Improved error message for ambiguous command shortcuts.

Canonicalize command when using aliases or prefix matching. This makes the norepo check and the help and version command work when not using the canonical name.

Automatically run "verify" whenever we run "recover"

Fix up test-help, mark test-rename +x

avoid to copy more than one file to the same destination file

copy & rename don't overwrite unless --force is specified

generalize copy/rename to handle more than one source directory

hgweb: remove redundant rstrip filter

use self.{w,}join when possible

Add safety check for addgroup

fix a warning when py2exe is not used

Add explicit 'st' alias for status

if unambigious command name are passed, use them

Add support for -r option in hg tag

fix file opening for some commands on Windows Using file as opener in debug commands won't work on Windows, as the index and data files needs to be opened in binary mode.

Merge with TAH