master updated (8757551da0 -> fa55708b55)

[Lars Ingebrigtsen]

larsi pushed a change to branch master.

      from  8757551da0 Simplify fullscreen management on Haiku
       new  c9c3d5d830 Revert "Allow using image-convert to view .bmp images"
       new  fa55708b55 Add new function image-supported-file-p


Summary of changes:
 lisp/image.el        | 19 +++++++++++++++++--
 lisp/mail/rmailmm.el | 17 +++++++----------
 lisp/thumbs.el       |  9 +++++----
 3 files changed, 29 insertions(+), 16 deletions(-)