Change all license headers to comply with REUSE specification.
Fix #16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
MakeAbsoluteAssetURL should just url join the static url prefix on to appurl
if it is not an absolute path - this is because StaticURLPrefix is an absolute
prefix not a relative prefix to the app sub url.
Fix #14422
Signed-off-by: Andrew Thornton <art27@cantab.net>