* test(requests): many clone requests to same base

issue #790

* fix(requests): allow many clones to same base

issue #790

* test(backend): test free memory error

issue #746

* feat(frontend): show request error if any

issue #746

* feat(backend): check free VM memory

closes issue #746

* wip(backend): check real free memory available

Before we could be misleaded by the use of
overcommitting memory allocation

issue #746

* wip(clone): run a request and let user know progress

issue #751

* feat(frontend): improved start machine

Start machine from clone waits with Javascript pulls

issue #751

* wip(frontend): moved viewer hint to bottom

issue #751

* wip(frontend): added timeout and description messages

issue #751

* wip(frontend): remove old run machine code

issue #751

* wip(frontend): show fresh machine information

issue #751

* wip(clone): run a request and let user know progress

issue #751

* feat(frontend): improved start machine

Start machine from clone waits with Javascript pulls

issue #751

* wip(frontend): moved viewer hint to bottom

issue #751

* wip(frontend): added timeout and description messages

issue #751

* wip(frontend): remove old run machine code

issue #751

* wip(frontend): show fresh machine information

issue #751

* fix(frontend): don't show display info if down

issue #751

* wip(grants): force shutdown timeout only if still up

issue #751

* wip(frontend): post start volatile domains

issue #751

* wip(frontend): post start volatile domains typo

issue #751

* [#629] [test] volatiles are removed from front

* [#629] [test] check volumes are removed

* [#629] check volumes are removed after shutdown

* [#629] force volume removal after shutdown of volatile

* [#629] test XML in extra data is there

* [#629] Allow forced virtual machine open

It will open even if there is no real virtual machine
in the VM

* [#629] store extra information of the virtual machine

Each different VM can have extra fields only for its kind

* fix: clean iptables even if domain removed

[#629]

* fix: remove domain even it is not known

[#629]

* wip(backend): remove disks from volatile clones

issue #629 wip

* feat(backup): clean temporary machines volumes

issue #629

* test(volatile): check volatile volumes are removed

* fix(downloads): retry if download failed

* fix(volatile): clean requests on machine remove

issue #629

* test(volatile): old machines crashed on remove

* fix(volatile): old volatile machines crashed on remove

If the machines were created before this feature, they were
missing the extra information, create it on open

issue #629

* fix(volatile): fixed SQL remove old requests

issue #629

* fix(frontend): open front domain

issue #629

* fix(volatile): show current name instead internal

issue #629

Letting libvirt do the removal automatically