Fix vagrant-test template fix

Semplification and fix of vagrant-test template. To run a VM
and automatically install devstack and execute tempest, execute:

    $ cp local.conf.template local.conf
    $ ./runtest.sh

The support for devstack and the installation of libvirt and qemu
from git repositories is present.

Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com>
fix: Kill only the VBox instances of the current user

When the ./stop script is used, it kills all the VirtualBox
instances in the system. This fix narrow the kill command to the
user's istances.

Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com>
Use specific username to get the gerrit stream

With this commit, it is possible to use a specific username
to download the gerrit stream. The username is specified in
the config file.

Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com>
renamed few files for readability

we 3 files named test-run, run-tests and runtest.sh:
- runtest.sh is now runVM.sh
- run-tests is now main_loop

Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com>
make shellci result compliant with the OpenStack CIs specs

The shellci results are now respecting the following spec:
"test-name-no-spaces http://link.to/result :
[SUCCESS|FAILURE] some comment about the test."

Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com>
local.conf file update

LIBVIRT and QEMU version updated. Enabled Neutron

Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com>
Save list of run tests in a file (tempest_test_list.txt)

The successfully run tests are now listed in tempest_test_list.txt