erp5testnode: add slapos.cookbook dependencies.

Explicitely list them, because develop egg doesn't not guarantee respect of dependencies.
Merge remote-tracking branch 'origin/master' into erp5testnode
version up : file 5.20.
fixup! slapos stack: use slapos.core 1.3.1.
slapos stack: use slapos.core 1.3.2.
erp5testnode: slapproxy listens to local ipv4.

No need to expose this slapproxy to the outside.
slapos stack: use temporarily old version of slapos.core.

slapos.core 1.3.X introduces regressions.
Revert "slapos stack: use temporarily old version of slapos.core."

This reverts commit f2e57a03840678e86d478930e7ea4cc7b9202bb0.
slapos stack: use slapos.core 1.3.3.
kvm: add dedicated erp5testnode software release.
kvm: resiliency test: add wrapper for erp5testnode.
fixup
fixup
fixup
fixup
fixup
kvm: test: change number of clone to 1.
fixup
fixup
fixup