Make build.xml use jruby.jar in jruby.home directory instead

git-svn-id: svn+ssh://rubyforge.org/var/svn/jruby-extras/trunk/jopenssl@824 8ba958d5-0c1a-0410-94a6-a65dfc1b28a6

Author: olabini

build.xml

@@ -8,7 +8,7 @@
   <property name="target.classes" value="${target}/classes"/>
   <property name="target.classes.test" value="${target}/test-classes"/>
   <property name="lib.dir" value="lib"/>
-  <property name="jruby.jar" value="${lib.dir}/jruby.jar"/>
+  <property name="jruby.jar" value="${jruby.home}/lib/jruby.jar"/>
   <property name="version.source" value="1.5"/>
   <property name="version.target" value="1.5"/>