When handling an http redirect, call the version of http_query that passes all of the options.
Create dummy entries for top-level directories in GROW,
so as to avoid a few unnecessary HTTP GETs.
Expands symlinks of a path in CVMFS.

Conflicts:
	parrot/src/pfs_service_cvmfs.cc
makeflow -M (--monitor) now takes a directory.

-M now takes a mandatory argument which specifies to which directory the
logs are written.