Move from the dated DocBook 4.2 standard to DocBook 4.5.  I double-checked that even Ubuntu Hardy has access to DocBook 4.5 so this change should be no problem for Hazen's Ubuntu Intrepid system.
Move from the dated DocBook 4.2 standard to DocBook 4.5.  I double-checked
that even Ubuntu Hardy has access to DocBook 4.5 so this change should be
no problem for Hazen's Ubuntu Intrepid system.

svn path=/trunk/; revision=11053

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