Include the mime-util library to guess file MIME types

The mime-util project is an open source, APLv2 library providing
support for MIME content type detection on files through both
the /etc/mime.types and /etc/magic.mime file formats.  We can use
it within CatServlet to determine what sort of file we are about
to serve to the client, so the client gets a proper Content-Type
header in the HTTP response.

Reviewed-by: Cedric Beust <cbeust@google.com>
Signed-off-by: Shawn O. Pearce <sop@google.com>
5 files changed