Diropen toolbar icon

[Jan D.]

Hello.

I've changed the diropen toolbar icon to the one suggested by Joachim 
Nilsson <address@hidden>.  I didn't use his files, I did 
the conversion to get the same palette as used for the other icons to 
reduce the number of colors Emacs uses.  However, the color looks a bit 
odd to be.  If you think so also, please mention it, and I'll try to 
adjust it.

I was going to replace forward and back also to the old gthumb icons, 
but it looks like I've misplaced them.  I'll have to find an old version 
of gthumb again.

   Jan D.