Merge remote-tracking branch 'wso2dev-carbon-utils/master'
updated Spring Framework version to 3.2.9
Refactored logging viewer code and stub
Reformate logging service component code
Modified logging config xml file to inline with new changes
Overriding new method introduced in new Hazelcast version
Fixed imports
Removing unneeded method
Fixing REGISTRY-2268
Re-adding new method from Hz version upgrade
Log appenders and circular buffer package changed to org.wso2.carbon.utils.logging
Log appenders' package changed to org.wso2.carbon.utils.logging.appenders.*
Refactored logging service code
git resolve remaining conflicts
Added cassandra-thrift and removed unused bundle
Fixed regression comes with kernel circular buffer generify effort
CassandraLogProvider and cassandra-thrift dependency was removed.