Added install rule for pkgIndex.tcl file, as well as a "canonical" install rule (i.e. as in the other pkg_xxx.in's).
Added install rule for pkgIndex.tcl file, as well as a "canonical" install
rule (i.e. as in the other pkg_xxx.in's).

svn path=/trunk/; revision=3969

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