Log Message:
Update to 1.5.1, requested by agc.

1.5.1 - 2010-04-01

Core

    * improve warning on adding large files
    * expand ~ in auth filenames and aliases
    * several improvements to patch parsing
    * warn about attempts to use hg branch to switch branches
    * push: fix bug in prepush logic and its tests
    * hgweb: fix broken URLs of RSS/Atom feeds
    * subrepo: several bug fixes

Extensions

    * acl: added support for '*' (everyone) in user list
    * progress: use stderr instead of stdout
    * schemes: add Kiln On Demand to default schemes