gplugin/gplugin

we were only using libgladeui to figure out where to install the catalog, but we should only be installing to our prefix, so do that and drop the dep
develop
2018-12-16, Gary Kramlich
3b855d76cdca
we were only using libgladeui to figure out where to install the catalog, but we should only be installing to our prefix, so do that and drop the dep
export GPLUGIN_VERSION=@GPLUGIN_MAJOR_VERSION@.@GPLUGIN_MINOR_VERSION@.@GPLUGIN_MICRO_VERSION@