Log Message:
Update to 1.4.2:

1.4.2 - 2010-01-01

   This is a minor bugfix release.

  core

     * config: raise ConfigError on non-existing include files
     * alias: do not crash when aliased command has no usage help text
     * auth: allow specifying auth sections in .hg/hgrc
     * patch: fix handling of chunk offsets
     * subrepo: add default path to new clones
     * docs: Fix rst2html detection

  extensions

     * convert/svn: better handling of hg recursive call failure
     * convert/svn: make sink recover gracefully from empty changeset
     * keyword: fix interaction with transplant
     * mq: preserve --git flag when folding and merging patches
     * mq: qnew -f rejects merge working directories
     * mq: qpop: remove added files before re-adding removed files
     * patchbomb: handle repository#rev URLs correctly
     * share: use defaultdest to compute unspecified destination