An IMAPS-FOLDER enforces an SSL connection regardless of what port you use

Reported and fixed by Daniel Herring

* Introduce openmcl-fixes file where the #_ reader conditional
  can get used safely
* Remove some :unix features from files.lisp - this should work
  in LW windows too
* Add :openmcl feature in files.lisp where needed
* Add openmcl specific gray-streams package conditional
  openmcl no longer has the feature :mcl!
* bump the version to 0.7.0

js@codeartist.org--2004-public/mel-base--dev--0.5--patch-30
Keywords: 

- Remove base-char declaration in rfc2822.lisp and smeta.lisp
- Remove md5.lisp from system for sbcl
- Remove umlaut-u from smeta.lisp (nuernberg)
- Provide :ascii as :external-format in sb-bsd-sockets

js@codeartist.org--2004-public/mel-base--dev--0.5--patch-28
Keywords: 

file-directory-p should return t only if the directory
really exists.

js@codeartist.org--2004-public/mel-base--dev--0.5--patch-25
Keywords: 

OpenMCL's make-socket does not get a element-type keyword.
I fixed it using it's format keyword.

js@codeartist.org--2004-public/mel-base--dev--0.5--patch-23
Keywords: 

Implement missing functionality in lisp-dep/
(make-connection, list-files, list-directory, stat, graystreams package)

Fix unportable references of characters (#\vt)

js@codeartist.org--2004-public/mel-base--dev--0.5--patch-22
Keywords: 

+ Correct MacOSX dirent structure
+ Remove /etc/mime for MacOSX
+ Update md5.lisp

js@codeartist.org--2004-public/mel-base--dev--0.5--patch-2
Keywords: 

The first problem was a redefinition of getpid
for SBCL when UFFI is there.

The second one is a missing sb-bsd-sockets
dependency for sbcl.