MEAR-146: add an option to tune the way the library-directory element is generated in the application.xml. Based on patch provided by Alex Halovanic. Also fixes MEAR-151.
maven/plugins/trunk/maven-ear-plugin/src/main/java/org/apache/maven/plugin/ear/GenerateApplicationXmlMojo.java
maven/plugins/trunk/maven-ear-plugin/src/test/resources/projects/project-079/