A build script should follow the following steps:

1) Comment the Test handler/button in plugin.xml
2) Build the plugin
3) Update the version string (you can run the "update_version" python script) in:
	- org.wesnoth.dependencies.feature/feature.xml
	- org.wesnoth.feature/category.xml
	- org.wesnoth.feature/feature.xml
	- org.wesnoth.ui/META-INF/MANIFEST.MF
	- org.wesnoth/META-INF/MANIFEST.MF
	- org.wesnoth/org.wesnoth.product
4) Uncomment the test Handler/button in plugin.xml
5) Upload files to sf.net
6) Update the html files with news about the new version