New procs to handle loading of the app-defaults file into the options db, plus changes to commentary.
New procs to handle loading of the app-defaults file into the options db,
plus changes to commentary.

svn path=/trunk/; revision=4228

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot