simplify build.xml: specialization for test.lib.dir and test-lib resolution are no longer needed, since they're now defined in ../contrib-build.xml

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1626429 13f79535-47bb-0310-9956-ffa450edef68
ignore IntelliJ *.iml files put in place by 'ant idea'

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1626431 13f79535-47bb-0310-9956-ffa450edef68