- Adds table cr_extension_mime_type_map, - Adds function cr_filename_to_mime_type [-create] filename - Adds function cr_create_mime_type -extension -mime_type -description - Removes *_maybe_create_new_mime_type - Updates acs-content-repository to 4.6.3. Ugrade scripts provided. - Updates dependency information for several packages. - Adds most mime types plus comprehensive list of extension to mime-typemappings. - Maps .c .h .c++ .pl etc to text/plain