Changes since DRUPAL-5--2-3:
- #281617 by drewish backport by dopry, add alt tags to filefield mime icons.
- #278562 gonna bow to the devel_shutdown for a bit until I can write my own upload.js to work around the crufty old stuff in core... It's a fix for D5 anyway.
- update client side accept validation to use , instead of | to make opera happy.
- #320986 : improving french translation (fr.po)
- #342336 by drewish: Revisit JS filtering so it works with spaces between extensions and uses a common error class name so other modules can use the same JS.