Fixed STRATOS-345 - CLI prompt to set STRATOS_URL though it is already set
adding sso skin done by chanaka jayasena, STRATOS-343
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos
Adding a bool to check whether the cluster is a LB cluster at cluster removed event
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos