qemu: add -nographic command line argument

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>
qemu: disable graphics and monitor

Each time qemu starts a new (graphic) window is created. We don't need
this.

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>
Merge pull request #1 from cojocar/cojocar/wip

Everything's fine for me, merged.
aruba: do not hardcode processes timeout
tests: check bugfix for remote memory deadlock

This is a testcase for S2E 33678714f857a7bd1762f561f9abac39dc4429bc
"Mitigate deadlock on remote write" which fixes a deadlock happening
during write in tight loops.
Merge branch master from origin with my local master; Add check to not include -monitor switch on MacOS
Added test for IdentifyMemoryRegionsPlugin
Added test for ControlFlowGraph plugin
annotation: swap state and plugin parametrs fo ann_{w,r} func
memory_interceptor: fix access_type field