AML supports migrating existing campaigns to v201302 with minimum required changes to support Enhanced Campaigns

AML will need a script to handle migrating existing (legacy) campaigns to enhanced campaigns for Phase I of the Enhanced Campaigns upgrade.

Implementation details:

1) remove platform targets
-enhanced campaigns automatically target all devices, so once it's set to enhanced, we won't be able to remove the platform targets.. therefore will have to do that while it's still a legacy campaign
-remove platform targets from GCE so, on campaign redeployment, the difference checking doesn't detect missing targets and try to remove them (also, GCE should reflect what's in AdWords)
-do we need to run seupdate or update the targeting.levelTargetMap table?
-> prob should b/c our system still needs to know the devices, and they have been updated
2) set enhanced=true
3) set mobile bid adjustment
-take the suggested value from Google
-set for GM, GT, and MO campaigns
4) set mobile-preferred flag on MO campaign ads