fix bug#1317 - we now keep a maximum of 50 image files open added support for CAIRO_FORMAT_RGB24 format in png:ps:cairo loader  (for -Tps)
fix bug#1317 - we now keep a maximum of 50 image files open
added support for CAIRO_FORMAT_RGB24 format in png:ps:cairo loader  (for -Tps)

MjAbuz/graphviz,pixelglow/graphviz,tkelman/graphviz,MjAbuz/graphviz,jho1965us/graphviz,jho1965us/graphviz,jho1965us/graphviz,jho1965us/graphviz,MjAbuz/graphviz,kbrock/graphviz,BMJHayward/graphviz,tkelman/graphviz,ellson/graphviz,kbrock/graphviz,BMJHayward/graphviz,kbrock/graphviz,kbrock/graphviz,tkelman/graphviz,jho1965us/graphviz,kbrock/graphviz,ellson/graphviz,ellson/graphviz,MjAbuz/graphviz,ellson/graphviz,tkelman/graphviz,kbrock/graphviz,ellson/graphviz,jho1965us/graphviz,jho1965us/graphviz,pixelglow/graphviz,MjAbuz/graphviz,pixelglow/graphviz,BMJHayward/graphviz,kbrock/graphviz,tkelman/graphviz,MjAbuz/graphviz,tkelman/graphviz,ellson/graphviz,jho1965us/graphviz,tkelman/graphviz,pixelglow/graphviz,BMJHayward/graphviz,pixelglow/graphviz,MjAbuz/graphviz,MjAbuz/graphviz,pixelglow/graphviz,ellson/graphviz,ellson/graphviz,tkelman/graphviz,BMJHayward/graphviz,MjAbuz/graphviz,kbrock/graphviz,kbrock/graphviz,ellson/graphviz,tkelman/graphviz,BMJHayward/graphviz,pixelglow/graphviz,BMJHayward/graphviz,BMJHayward/graphviz,jho1965us/graphviz,tkelman/graphviz,pixelglow/graphviz,MjAbuz/graphviz,BMJHayward/graphviz,jho1965us/graphviz,tkelman/graphviz,pixelglow/graphviz,pixelglow/graphviz,kbrock/graphviz,BMJHayward/graphviz,ellson/graphviz,ellson/graphviz,pixelglow/graphviz,kbrock/graphviz,MjAbuz/graphviz,BMJHayward/graphviz,jho1965us/graphviz