Closing curly brace is missing,,LB-92

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@181197 a5903396-d722-0410-b921-86c7d4935375
fixing NPE

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@181198 a5903396-d722-0410-b921-86c7d4935375
cassandra cluster monitor page is removed. (was a duplicate)

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@181200 a5903396-d722-0410-b921-86c7d4935375