Added proper user error msges

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@191108 a5903396-d722-0410-b921-86c7d4935375
adding new icons

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@191109 a5903396-d722-0410-b921-86c7d4935375
fixing TOOLS-2106,2107,2108

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@191110 a5903396-d722-0410-b921-86c7d4935375