config locations to store secure vault passwords modified and ui code refactored accourding to the BE modifications

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@179240 a5903396-d722-0410-b921-86c7d4935375
Applying patch provided by Chanika to fix DS-744

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@179241 a5903396-d722-0410-b921-86c7d4935375