Handle the Loganalyzer appender self logging using log4j LogLog framework.

[uthaiyashankar]

Loganalyer log4j appender self logging handle using LogLog instead of using System.out and System.err .
We can use the LogLog class for handle the self logging in log appender.
org.apache.log4j.helpers.LogLog

Moved from https://wso2.org/jira/projects/SHAREDANLY/issues/SHAREDANLY-2