App Engine: more ressurection work. gets further.

Change-Id: I88a36eb637fe531e2666dea8dc6c94cc442804f8
App Engine: remove a directory that is now just stutter

Change-Id: Iee8847ef670b1dd192f3f05c55f22aab3d71ba95
App Engine: start of writing an IndexStorage impl for datastore.

Change-Id: I03fb6be33b570fa56a4370f6ca86da6858490510
gofmt

Change-Id: I14f5c2129fb50c84ec3977049d1b8c1787636c65
App Engine: ContextPool

Change-Id: I8eb3116fc9a06d99a4d14850c8cbcc0bc61da26f