Changes to allow Latex doc to build.  Had to hack out the math -- this will have to be added in again.  Plan to make some use of conditionals (\begin{ifinfo}, \begin{tex}) to get these right.
Changes to allow Latex doc to build.  Had to hack out the math -- this
will have to be added in again.  Plan to make some use of conditionals
(\begin{ifinfo}, \begin{tex}) to get these right.

svn path=/trunk/; revision=895

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