start.sh is duplicated in many images

[Sam Yaple]

The majority of the start.sh code is identical. We need to follow DRY and reduce that duplicated code.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/229371

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/229371
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=cb4e875ae1e1ec2e6ddf8a6b37f42283697fd50c
Submitter: Jenkins
Branch: master

commit cb4e875ae1e1ec2e6ddf8a6b37f42283697fd50c
Author: Sam Yaple <email address hidden>
Date: Wed Sep 30 11:23:39 2015 +0000

    Common start.sh

    The majority of the start.sh code is identical. This removes that
    duplicate code while still maintaining the ability to call code in a
    specific container.

    The start.sh is moved into /usr/local/bin/kolla_start in the container

    The extend_start.sh script is called by the kolla_start script at the
    location /usr/local/bin/kolla_extend_start . It always exists because
    we create a noop kolla_extend_start in the base directory. We override
    it with extend_start.sh in a specific image should we need to.

    Of note, the neutron-agents container is exempt from this new
    structure due to it being a fat container.

    Additionally, we fix the inconsistent permissions throughout. 644 for
    repo files and the scripts are set to 755 via a Docker RUN command to
    ensure someones local perm change won't break upstream containers.

    Change-Id: I7da8d19965463ad30ee522a71183e3f092e0d6ad
    Closes-Bug: #1501295

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/231311

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/231311
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=dc1983eff5f9ae38a4be2ab79a0505d0f96d0c40
Submitter: Jenkins
Branch: stable/liberty

commit dc1983eff5f9ae38a4be2ab79a0505d0f96d0c40
Author: Sam Yaple <email address hidden>
Date: Wed Sep 30 11:23:39 2015 +0000

    Common start.sh

    The majority of the start.sh code is identical. This removes that
    duplicate code while still maintaining the ability to call code in a
    specific container.

    The start.sh is moved into /usr/local/bin/kolla_start in the container

    The extend_start.sh script is called by the kolla_start script at the
    location /usr/local/bin/kolla_extend_start . It always exists because
    we create a noop kolla_extend_start in the base directory. We override
    it with extend_start.sh in a specific image should we need to.

    Of note, the neutron-agents container is exempt from this new
    structure due to it being a fat container.

    Additionally, we fix the inconsistent permissions throughout. 644 for
    repo files and the scripts are set to 755 via a Docker RUN command to
    ensure someones local perm change won't break upstream containers.

    Change-Id: I7da8d19965463ad30ee522a71183e3f092e0d6ad
    Closes-Bug: #1501295
    (cherry picked from commit cb4e875ae1e1ec2e6ddf8a6b37f42283697fd50c)