test needs beanshell in addition to BSF

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1515082 13f79535-47bb-0310-9956-ffa450edef68
pass ant.home down to antunit tests

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1515083 13f79535-47bb-0310-9956-ffa450edef68