Show/Update/Delete IPSec connection APIs return 500 rather than 404 when resource not found

[Ma, Tianxiao]

Show/Update/Delete IPSec connection APIs return 500 rather than 404 when resource not found.

The following APIs is affected.

GET /v2.0/vpn/ipsec-siteconnections/{connection-id}
PUT /v2.0/vpn/ipsec-siteconnections/{connection-id}
DELETE /v2.0/vpn/ipsec-siteconnections/{connection-id}

Issuing above APIs with incorrect {connection-id} will get a 500 server internal error rather than 404: item not found.

Please check it, thank you!

OS: CentOS 6.5
Openstack: IceHouse

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/116904

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/116904
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=a2ea7362111e2647477e503a53f650ce847753f7
Submitter: Jenkins
Branch: master

commit a2ea7362111e2647477e503a53f650ce847753f7
Author: Ilya Shakhat <email address hidden>
Date: Tue Aug 26 18:24:20 2014 +0400

    Fixed template of IPsecSiteConnectionNotFound message

    Closes bug 1361044

    Change-Id: I667f066e6187e953d467428e9990fa76adfc365b