the Menu typedef as return type, and *ALL* menus that intercept USB connect
can then return MENU_REFRESH_DIR so that the parent (any parent really) that
do file or dir-accesses knows that and can do the refresh. If no refresh
is needed by the parent, MENU_OK is returned.
Somewhat biggish commit this close to 1.3, but we need to sort out this
refresh-after-usb-connected business.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1948 a1c6a512-1295-4272-9138-f99709370657
