Increasing default to 1 GiB
Increasing default to 1 GiB

512 MiB was definitely not enough for the control node,
and triggered the PhantomJS crashes. Restarting the phantom browser
seemed not to fix the memory problems.

MalloZup/sumaform,moio/sumaform,MalloZup/sumaform,MalloZup/sumaform,moio/sumaform,moio/sumaform,MalloZup/sumaform