More consistent Official Notice language.
More consistent Official Notice language.

Official notice about the environment variable method we support for
specifying a compiler and its options.  

Discussion of the new soft-landing implementation for bad/missing compilers.


svn path=/trunk/; revision=10178

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