Test markForRetry.
Upgrade libs.
Upgrade GCS.
Add missing image tests.
Test list subscriptions.
Fix Users tests execution.
MailServiceTests shouldn't fail if other email messages are received while polling for a specific message
Don't sort when only reading unread TempData entities
Read Mail BodyPart content properly
Test static files with same url as servlets
Handle client shutdown.
Add missing trim.
Additional static-files tests
Simplify static-files tests
Test static-files with additional http-header tag and expiration attribute
Test if <public-root>in appengine-web.xml is handled properly
Test default expiration for static files
Check if Expires HTTP header is correct in cases where the server does not send the Date HTTP header
Test if system properties and env variables are set if defined in appengine-web.xml
Enable non-API test by default.