gplugin/gplugin

Bumping the version and setting the release date
develop v0.28.1
2019-09-30, Gary Kramlich
85f1c51427fe
Bumping the version and setting the release date
export GPLUGIN_VERSION=@GPLUGIN_MAJOR_VERSION@.@GPLUGIN_MINOR_VERSION@.@GPLUGIN_MICRO_VERSION@