GitLab

Make 'ssh_keys' and 'accept_ssh_from' optional, since there are not
mandatory for ci to work.

Make 'snf-ci' python script to run CI commands.

Remove the 'deploy_on_io' option. Instead check if you will need to
compute manually the ssh port by the domain of the cyclades url.

Add option to use a custom image_id and flavor_id instead of getting
them from config file.

Get credentials for deployment from .kamakirc instead of config file.
Also, add option in config file indicating which cloud for kamaki to
use. Finally, add option in SynnefoCI to override the cloud from config.

Refs #4193

Add option for copying ssh keys to the created vm.

* override config file from env variable
* pep8 fixes
* do not display vm password
* fail if cloning repo fails
* do not use eval

Spawn VM to use as builder-slave.
Build packages inside this VM.
Deploy Synnefo using snf-deploy.
Run unit tests.
Run functional tests using burnin.

to avoid tests failures due to locally modified settings

Try to intall 'snf-django-lib' before 'snf-webproject', since the
webproject depends to snf-django.

Try to intall 'snf-django-lib' before 'snf-webproject', since the
webproject depends to snf-django.