Extend example deployment scripts with possibility to deploy multiple jobs

[junajan]

In the Travis example scripts we have a file gcloud-deploy.sh which is currently able to deploy only one job.

The name of this job is taken from env variable HELM_CHART_TEMPLATE_NAME configured here in travis.yaml.

It would be cool if we can extend the script so it can deploy multiple services or to accept the job name via parameter so we can call it like this:

bash $CI_SCRIPTS/gcloud-deploy.sh "production" job1
bash $CI_SCRIPTS/gcloud-deploy.sh "production" job2

Instead of this:

HELM_CHART_TEMPLATE_NAME=cronjob_1 bash $CI_SCRIPTS/gcloud-deploy.sh "production"
HELM_CHART_TEMPLATE_NAME=cronjob_2 bash $CI_SCRIPTS/gcloud-deploy.sh "production"