Change-Id: I4de388bb1af6cd4568cdc154971927941eb73800
BUG=7503
TEST=Ran test by closing vm's as they start up to see retry work.
Review URL: http://codereview.chromium.org/3598019
Right now we're leaving error_ok=True until the tests are shown to work on builder.
Change-Id: I6b8c690a0da30948389fd4312032c78d87115364
BUG=6906
TEST=Ran through it locally.
Review URL: http://codereview.chromium.org/3591002
Also fixed get latest image logic in image_to_vm and allowed for using the most recent image in cros_run_vm_test to follow other shell convention of using latest.
Change-Id: I60ed4c03d609500da7f6ae34ef57ba2e32f4b0bb
BUG=
TEST=Tested by running image_to_vm with --full and cros_run_vm_test with suite_Smoke
Review URL: http://codereview.chromium.org/3597001
BUG=
TEST=Tested by persisting, ctrl+c, continuing and using same vm.
Also without --persist
Review URL: http://codereview.chromium.org/3419014
Change-Id: I49e26eb86101e8b8b50e58a9f277d62d5fadc664