Merge with crew-stable

hgwebdir: normalize virtual paths before stripping the separator It is not even clear that virtual paths should be normalized as normal paths at all, we could expect slash to be the natural separator.

win32: read system rcpath from registry Using the module name was not always helpful. It breaks down when Mercurial is installed as source and when the Mercurial libs are used by external applications. This patch allows Mercurial installers to store the system wide rcpath in the registry, where it can always be found. HGRCPATH is a poor option for storing the system wide rcpath, since it overrides both the system and user rcpaths.

Merge with crew-stable

mq: missing target files do not make qpush to fail immediately (issue 835) Reported and explained by Peter Arrenbrecht <peter.arrenbrecht@gmail.com>. Following file additions were skipped but empty files were still created. This situation could lead to qrefresh losing patch information.

Fix style nit and add some comments to tests.

Use SCRIPT_NAME and PATH_INFO instead of REQUEST_URI. This is required by WSGI (fixes issue846).

Add tests for hgwebdir repository names with slashes in them.

CGI compatibility fix for d74fc8dec2b4.

doc: add repo/ to .hgignore and .hgtags These names were disappearing in the asciidoc output and no form of escaping seems to help. Let's just add repo/ to make it explicit that they're in the repository root.