[maven-release-plugin] copy for tag org.gvsig.dwg-2.0.20
[maven-release-plugin] copy for tag org.gvsig.dwg-2.0.19
[maven-release-plugin] copy for tag org.gvsig.dwg-2.0.18
[maven-release-plugin] copy for tag org.gvsig.dwg-2.0.17