[WFLY-1242] use JBossLogPrintWriter to output log information to jboss logging

https://issues.jboss.org/browse/WFLY-1242
OK. I know this. 
I think it's OK since user want output whole String into one log line. Like:
12:50:22,431 INFO  [stdout] (MSC service thread 1-1) *** Logging via PrintWriter *** \nJCA EIS

It might some confuse. If you think we should keep everything using same logic, I will change it.