GUI-1432: Prevent JS error and properly display addresses on IP addresses landing page

...when attempting to allocate IPs from the dashboard.

Fixes https://eucalyptus.atlassian.net/browse/GUI-1432
I often use $timeout without no time value for this role in the controller. Is the goal to let this code run after angular has finished initializing? If so, $timeout is probably the right option.  (just tested and $timeout works as well)