[trace] modifications to log4j tracer

git-svn-id: http://umple.googlecode.com/svn/trunk@4346 6ebf9d09-8eb1-0036-9d08-68c07d1b990a
[umplificator] log4j libraries

git-svn-id: http://umple.googlecode.com/svn/trunk@4347 6ebf9d09-8eb1-0036-9d08-68c07d1b990a
libs

git-svn-id: http://umple.googlecode.com/svn/trunk@4348 6ebf9d09-8eb1-0036-9d08-68c07d1b990a