NUTCH-1799 ANT Eclipse task discovers all plugin jars automatically (jnioche)

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1609158 13f79535-47bb-0310-9956-ffa450edef68
NUTCH-1811 bin/nutch junit to use junit 4 test runner

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1609568 13f79535-47bb-0310-9956-ffa450edef68