[#4708] - NetBeans iReport plug-in is missing some files and does not work

When I install NetBeans 6.8 and new iReport plugin (version 3.7.2) for NetBeans, when I try to use it, NetBeans reports missing dependencies in JasperReports library. These files / entries are missing:

- nbinst://com.jaspersoft.ireport/modules/ext/commons-beanutils-1.8.0.jar
- nbinst://com.jaspersoft.ireport/modules/ext/poi-3.2-FINAL-20081019.jar
- nbinst://com.jaspersoft.ireport/modules/ext/jasperreports-3.7.0.jar
- nbinst://com.jaspersoft.ireport/modules/ext/xercesImpl-2.7.0.jar
- nbinst://com.jaspersoft.ireport/modules/ext/iText-2.1.0.jar
- nbinst://com.jaspersoft.ireport/modules/ext/jasperreports-fonts-3.6.1.jar

User can substitute invalid entries with real ones by removing invalid jar files and adding the right ones. (files contained in the plug-in are newer than those specified in the installation routine of the plugin / filenames do not match).