IMPROVEMENT: declare source and javadoc artifacts in maven2 modules (IVY-325)

Files:
added: /ant/ivy/core/trunk/test/repositories/m2/org/apache/test-sources2/1.0 (try)
added: /ant/ivy/core/trunk/test/java/org/apache/ivy/core/resolve/ivy-m2-with-sources-and-javadoc-auto.xml (try)
added: /ant/ivy/core/trunk/test/repositories/m2/org/apache/test-sources2 (try)
modified: /ant/ivy/core/trunk/src/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorParser.java (try)
added: /ant/ivy/core/trunk/test/repositories/m2/org/apache/test-sources2/1.0/test-sources2-1.0.pom (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/core/resolve/ResolveTest.java (try)
added: /ant/ivy/core/trunk/test/repositories/m2/org/apache/test-sources2/1.0/test-sources2-1.0.jar (try)
modified: /ant/ivy/core/trunk/CHANGES.txt (try)
added: /ant/ivy/core/trunk/test/repositories/m2/org/apache/test-sources/1.0/test-sources-1.0-javadoc.jar (try)
added: /ant/ivy/core/trunk/test/repositories/m2/org/apache/test-sources2/1.0/test-sources2-1.0-sources.jar (try)
modified: /ant/ivy/core/trunk/src/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorBuilder.java (try)