Suggestion - add a "Local library" directory for hg binary package

[Paul Moore]

Would it be reasonable to add an extra directory to sys.path when
Mercurial is run from a frozen executable? Specifically, in the
Windows binary, add a "Library" directory alongside hg.exe which is
added to sys.path. Then, extensions like convert which require the
Python svn bindings can work by installing the bindings in the
"Library" directory.

If the idea seems reasonable, I'll put together a patch. It would be
nice to get this in for 1.0.

Thanks,
Paul.