EUCA-7249
Present an alert dialog if no launch configs are present, instead of the scaling group wizard.
NOTICE - this commit has a cheat to simulate that condition for testing. It will be removed when merged into mainstream.
EUCA-7249
Remove cheat used to test this fix.
EUCA-7252
Wasn't loading the AZ and LB arrays into the model before save() is called.
EUCA-7271
Added array iterators to template.
Read volume attachments from the instance database context into a new data structure before iterating over the collections

Fixes EUCA-7263
External DNS requests for public name now return public IP - EUCA-7275

EUCA-7275