gplugin/gplugin

Bump version numbers for the 0.28.2 release
develop v0.28.2
2019-10-31, Gary Kramlich
1924632f9d60
Bump version numbers for the 0.28.2 release
export GPLUGIN_VERSION=@GPLUGIN_MAJOR_VERSION@.@GPLUGIN_MINOR_VERSION@.@GPLUGIN_MICRO_VERSION@