Gui 1412 Handle service denial better and display properly on service status

https://eucalyptus.atlassian.net/browse/GUI-1412
all of these will be there due to this code: https://github.com/eucalyptus/eucaconsole/blob/develop/eucaconsole/views/login.py#L61-L88

if they fail, I do want to fail more clearly, not later and wonder why. Make sense?