Added scads of comments, especially at the beginning of the file.
Added scads of comments, especially at the beginning of the file.

Added some more options, including the reinstatement of some features
that had been present in Hinson's version.

Added temp_file class and derived temparrayfile from it plus
arrayfile.


git-svn-id: 8c9cf565d959f48f2495bfea3c697473c881f37a@15 67c13c2a-ce2d-4362-9fbd-a73952e22801

tschaume/gnuplot-py,tschaume/gnuplot-py