dmd 1.068 and 2.053 release

[dsimcha]

== Quote from Walter Bright (newshound2 at digitalmars.com)'s article
> Thanks for everyone's hard work on this release!
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.067.zip
> Now includes FreeBSD:
> http://www.digitalmars.com/d/2.0/changelog.html
> http://ftp.digitalmars.com/dmd.2.052.zip

Oh, one more question I've been meaning to ask for a while:  Other than ridiculous
corner cases (like needing more than 2 GB RAM for CTFE or not having 32-bit libs
installed) is there any good reason to prefer either the 64-bit or 32-bit binary
on a 64-bit system?