Pick BamServerURL from carbon.xml


git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@180399 a5903396-d722-0410-b921-86c7d4935375
fixing issue in updating and adding API

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@180402 a5903396-d722-0410-b921-86c7d4935375
fixing api adding issue

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@180403 a5903396-d722-0410-b921-86c7d4935375