boto version checking in test cases is not backwards compatible

[James Page]

The changes in commit:

  https://github.com/openstack/nova/commit/7161c62c22ebe609ecaf7e01d2feae473d01495a

Introduced version checking for boto 2.14; however string comparison is not effective for version checking as

'2.9.6' >= '2.14' == true

Resulting in older boto versions (as found in saucy) trying to test with the 2.14 code.

[Davanum Srinivas (DIMS) (dims-v)]

review is here - https://review.openstack.org/#/c/51426/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/51426
Committed: http://github.com/openstack/nova/commit/eaf5636544a9b2ae1e87f74d0cdb989f8a41b008
Submitter: Jenkins
Branch: master

commit eaf5636544a9b2ae1e87f74d0cdb989f8a41b008
Author: Davanum Srinivas <email address hidden>
Date: Sat Oct 12 21:49:34 2013 -0400

    Harden version checking for boto

    Simple string comparison is not effective for version checking.
    Let's switch to using pkg_resources.parse_version and compare
    the tuples. Per review feedback, enabling the code path for
    2.13 as well. Originally we had handled this by excluding
    2.13 from requirements. With this we should be able to removing
    the exclusion for 2.13 from global requirements.

    Change-Id: Ie047f7201d8e6a9a9641000d387c4312506f49b1
    Closes-Bug: #1239220

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/grizzly
Review: https://review.openstack.org/51709

[Adam Gandelman (gandelman-a)]

This fix here is not sufficient, opened https://bugs.launchpad.net/nova/+bug/1239890 to track

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/grizzly
Review: https://review.openstack.org/51760

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/51760
Committed: http://github.com/openstack/nova/commit/0409a098de02407e8229183ee55f11252c0a3cf4
Submitter: Jenkins
Branch: stable/grizzly

commit 0409a098de02407e8229183ee55f11252c0a3cf4
Author: Adam Gandelman <email address hidden>
Date: Mon Oct 14 18:01:15 2013 -0700

    Further harden boto version checking in EC2 tests

    Use pkg_resources to determine correct boto interface
    to use in API tests. stable/grizzly version.

    Fixes Bug #1239220

    Change-Id: I455ce5f2aabfad7178be361844c6b9b7b0d9c946

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/havana
Review: https://review.openstack.org/65975

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/65975
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=03f7ee05081873b904db2bd7369ccf511b8ed8a9
Submitter: Jenkins
Branch: stable/havana

commit 03f7ee05081873b904db2bd7369ccf511b8ed8a9
Author: Adam Gandelman <email address hidden>
Date: Mon Oct 14 18:01:15 2013 -0700

    Further harden boto version checking in EC2 tests

    Use pkg_resources to determine correct boto interface
    to use in API tests. stable/havana version.

    Fixes Bug #1239220

    Rebased-By: Dirk Mueller <email address hidden>

    Change-Id: I455ce5f2aabfad7178be361844c6b9b7b0d9c946