setting embedded ldap server log level to error

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@180024 a5903396-d722-0410-b921-86c7d4935375
resolved SUPER_TENANT_DOMAIN_NAME if tenantId is SUPER_TENANT_ID 

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@180025 a5903396-d722-0410-b921-86c7d4935375