heat db field nullable is True by default

[Kanagaraj Manickam]

in Heat db models, the default value of nullable attribute is set in many of the model's fields, which is not required as sqlalchemy column defines nullable as True by default

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/170773

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/170773
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=1dbb1ed98f98a8b474f4d54df6554e4e1d93a296
Submitter: Jenkins
Branch: master

commit 1dbb1ed98f98a8b474f4d54df6554e4e1d93a296
Author: Kanagaraj Manickam <email address hidden>
Date: Mon Apr 6 10:52:57 2015 +0530

    Cleans nullable=True in db model column declaration

    By default sqlalchemy considers the Column's nullable=True and
    this patch cleans those column declaration which is having
    default value for the nullable field as it is not required
    explicitly

    Change-Id: I22b0d62238298fa49da09c53019408bc2049b893
    Closes-bug: #1439959

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/176124

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/176124
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=d61ba3ba5222dd6338528cbb4232df6ed959f540
Submitter: Jenkins
Branch: stable/kilo

commit d61ba3ba5222dd6338528cbb4232df6ed959f540
Author: Kanagaraj Manickam <email address hidden>
Date: Mon Apr 6 10:52:57 2015 +0530

    Cleans nullable=True in db model column declaration

    By default sqlalchemy considers the Column's nullable=True and
    this patch cleans those column declaration which is having
    default value for the nullable field as it is not required
    explicitly

    Change-Id: I22b0d62238298fa49da09c53019408bc2049b893
    Closes-bug: #1439959
    (cherry picked from commit 1dbb1ed98f98a8b474f4d54df6554e4e1d93a296)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/179291

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/179291
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=5d725ecd09a35e3d5fb042956c4ecebb309c0a41
Submitter: Jenkins
Branch: master

commit b5c32027e5f207cca51796ee2aba346413ad48da
Author: Steven Hardy <email address hidden>
Date: Thu Apr 23 14:14:26 2015 +1000

    Fix ResourceGroup validate when there are removal_policies

    We can't call child_template() from a validate in ResourceGroup
    as it accesses nested(). So move the validation to validate_nested_stack()
    so we can control the test template used for validation.

    Unfortunately coverage for this got removed during recent test rework
    and it looks like the interface has got broken.

    Co-Authored-by: Angus Salkeld <email address hidden>
    Change-Id: Ibea738a343847736b041cc49a2c486fa71e562d9
    Closes-Bug: #1446861

commit c958ecb5b4b4fc5a0236b70c21d7d62864cd162b
Author: Ethan Lynn <email address hidden>
Date: Wed Apr 22 13:46:11 2015 +0800

    Fix unicodeerror when heat-engine start

    If change local language to other languages(like ja), heat-engine
    will failed to start.

    Closes-Bug: #1446958
    Change-Id: Ia3cbcebb86257bc1c52ea758c1583191e5a52a2d
    (cherry picked from commit 0b3dd7be3d3cd9842616a16843d03e6c13cdcb08)

commit 94c4ae56e0fece995659d718ed1ab6e56b2deb9f
Author: Ethan Lynn <email address hidden>
Date: Tue Apr 21 17:09:42 2015 +0800

    Add v6-fixed-ip support for nova server

    Now nova server fixed-ip only support ipv4 address,
    this patch add IPv6 fixed ip support for nova server.

    Closes-Bug: #1446532
    Change-Id: I647abeedd36352f053a043d00ab87a84ee2470f3
    (cherry picked from commit 3e1a6f3b826bbc2a638ed7ea239221d13678024c)

commit d07f91615a159663261091e672ce62f90e6ad607
Author: Angus Salkeld <email address hidden>
Date: Tue Apr 7 09:25:50 2015 +1000

    Persist parent_resource_name and make sure it's available

    We are persisting for a number of reasons:
    - so we don't have to pass this through ever rpc call
    - the API exposes parent_resource (currently always None as
      it is not persisted)

    Closes-bug: #1438978
    Change-Id: Id2db36c0234a085ec4f0ce2ab114ec483ea29d81
    (cherry picked from commit edf86aeac2f7b68243b0eccc3c49fa1a579e664b)

commit f944c86d4c26877f4d8dab56790815af8e83ba45
Author: Michal Rostecki <email address hidden>
Date: Wed Mar 25 06:47:33 2015 +0100

    Novaclient v2 instead of v1_1

    Nova API v1.1 is now deprecated and causes warnings.

    Change-Id: Ib4b57a308b7637f4015a07b4e888ccd6347cb947
    Closes-Bug: #1437158
    (cherry picked from commit d9d68cf52bd7027e7d1cafd023a399c2a342b2c5)

commit 370f3c98c5eccf8bce1be425acc31af5e7224171
Author: Zane Bitter <email address hidden>
Date: Thu Apr 16 17:20:05 2015 -0400

    Don't re-bind environment for get_file during stack update

    While we're in the process of updating a stack, we set the stack's
    environment to the new, updated values. However, we don't want to change
    existing resources' idea of their own values until we have explivitly done
    an update of them to bring them into line with th...