[trace] association tracing

git-svn-id: http://umple.googlecode.com/svn/trunk@4039 6ebf9d09-8eb1-0036-9d08-68c07d1b990a
[trace] fixing build - @UMPLE_VERSION@ instead of ${last.version}

git-svn-id: http://umple.googlecode.com/svn/trunk@4040 6ebf9d09-8eb1-0036-9d08-68c07d1b990a
git-svn-id: http://umple.googlecode.com/svn/trunk@4041 6ebf9d09-8eb1-0036-9d08-68c07d1b990a