Guess file extension based on content-type. When downloading a file, and no path is supplied to store it, guess the file extension using mimetypes and the content-type header. Also supply a unit test for the HotLinkImageForm.

div.weblinks-link-sort {
   padding-bottom: .5em;
}

ul.weblinks-link-options {
   margin: 0;
   padding-left: 0;
   list-style-type: none;
}

ul.weblinks-link-options li {
   display: inline;
   padding: 0 5px;
}