* Add state migration from disk to boot_disk/scratch_disk/attached_disk
* get rid of test for now
* update schema version
* add tests for migration
* fix travis errors
* actually fix travis errors
* fix logic when project is set, also remove some log statements
* add tests for reading based on encryption key and image
* use as much of the image URL as we can for matching on image
* read project from config if it wasn't set in the attribute
* update resolveImage call
