Make apt-get quiet, reducing output during build.

We don't need to see each mirror getting updated.  If I could remove the
output showing what was installed I would do that as well but apt-get
doesn't support that internally.
Update box names for clarity.

Updated the names of boxes and ensured their configurations matched only
their configuration rather than rewriting the global.  Also added notes
on changes that may be desirable in the attributes of the cookbook.