Release 0.6.3

Yes! A new release the day after 0.6.2 -- this release (0.6.3) has some great new features that demanded a hot-off-the-presses package:

* bug-fix for string and list concatenate (that I introduced in 0.6.2) that causes problems with format and friends.

* a slicker way of handling files -- no banner and immediate exit -- this allows for, among other things, CGI programming using marlais. WIN!

* a CLI for dylan expressions which gives quicky Dylan scripts

* a host of new command-line switches -- type 'marlais -h' to see them.

As we already have make(<class>), each-subclass slots and other advanced features, only implementing macros stands in the way of marlais in the Big-Time!