go app engine 386 1.8.0

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
go app engine amd64 1.8.0

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
app engine java sdk 1.8.0

Closes #19982.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>