LogEventAppender package updated in the log4j.properties file.
Changed MemoryAppender to CarbonMemoryAppender.
Merge pull request #23 from GayashanNA/COMMONS-110

Fixing WSAS-1776 - Fixed regression issues introduce with Simplify Carbon Platform Logging Story improvement
Merge branch 'master' of https://github.com/wso2-dev/carbon-deployment
updating licenses