gce - instances api
Merge pull request #1150 from dralves/gce-instances

gce - instances api
Dynamically generate filesystem blobstore input

This removes several large images from the source tree.
Dynamically generate base blobstore input

This removes a single large image from the source tree.
Merge pull request #1222 from maginatics/dynamically-generate-test-input

Dynamically generate test input