Kill navigationStart

make it part of MinervaTemplate->render

Change-Id: If631c77ad98cd126ea1b48f342e26dfbb2f22b48
Promote all the banners into MinervaTemplate

Use the time to refactor into one variable

Change-Id: Ic065c8b358e736f5aa281efa05f2cb5ad389e368
Merge changes Ic065c8b3,If631c77a

* changes:
  Promote all the banners into MinervaTemplate
  Kill navigationStart