ignoring edata files and txt output from experiments
made gray the default background color, both for display device and as an attribute for all slides
made subject number default to zero, no longer prompt for session -- speeds up development and testing process
made background style, font style, and font size attribute linked values, left to defaults for now
made frame width and height into attributes, and changed backColor to SlideBackColor (also back style)
Adding in work on Monday with startup info
made variables part of startup info instead of in inline script
added files from base branch, manual merge