Fix download-location of commons-logging4 jar and add it to FindBugs and bin-files target correctly
Add ant-jar to findbugs target as it is needed for excelant-code-check now
Fail on error when running Findbugs (still not on found warnings!)

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1754688 13f79535-47bb-0310-9956-ffa450edef68
1 file changed