Moved plotgroup_templates out of the PlotEngine class so that there is one static list per Topographica run.
Moved plotgroup_templates out of the PlotEngine class so that there is one static list per Topographica run.


ioam/svn-history,ioam/svn-history,ioam/svn-history,ioam/svn-history,ioam/svn-history