Fix for bug 53696: periods(.) and plusses(+) were not being accepted as valid in mime-types, which are legal per RFC2045 and RFC2048.

Also adds link+desc to created patch.
r=jake,terry

me.  Added a footer to every page.  Add some options to do things like
display checkboxes instead of scrolling lists, and a new formatting
for email diffs, and show list items capitalized instead of all upper
case.

the change (after all, they are right there viewing things interactively).
To make this clear to everyone, print out the exact email list as each
bug is processed.