ignoring IOError and just using defaults, and lets enviroment be a dict by default
ignoring IOError and just using defaults, and lets enviroment be a dict by default

svn path=/trunk/; revision=858

ext/slideshow,ext/slideshow-frontend,ext/slideshow,ext/slideshow,ext/slideshow-frontend,ext/slideshow,ext/slideshow-frontend,ext/slideshow,ext/slideshow