Move common openstack service installation operations
into a new script `os-svc-install`, which simplifies
the elements for openstack services.
Change-Id: Ied8ac3278e7fe8af76e24748ec4e598a84afa03c
This patch fixes a problem: if a binary is not found, the script
exits without a message informs what is needed (because of 'set -e').
Change-Id: I00b8917918f0e6eddf8506d6548432077eb4bf14
Flavour is overloaded in openstack due to it being used by nova. Element
seems to have the same feeling of combinability without using a term already
in active use in the openstack community.
Change-Id: Ia4c028d4062a8f69c66665821c94dd4bcdf06031
