VMM/password: Code cleanups: - Rely no longer on Crypto.Hash for md4 support. Python's hashlib on FreeBSD, Linux and OpenBSD provides the md4 hash. - Dropped DIGEST-MD5 password hashing for Dovecot <= v1.1.12/v1.2.beta2

# use glob syntax.
syntax: glob

*~
*.py?
.*.swp
.swp
build
debian/vmm
debian/*.log
debian/*.debhelper
debian/files
debian/*substvars
.pc
*.egg-info