Updated AntExtras plugin

An updated AntExtras plugin is available in this download package. The file name is antextras.jar

To use this updated plugin, you must replace the version of antextras.jar in the WSAD_installdir\eclipse\plugins\com.ibm.ant.extras_5.0.0\runtime with the new version.

This fix allows you to import projects multilple times. If the project already exists, then it will be refreshed.