ec2-token authentication broken

[Steven Hardy]

Since the move to keystoneclient authtoken and associated config-file refactoring, our ec2token filter is broken so authenticating with ec2-style credentials (e.g via heat-boto, cfn-init, cfn-hup etc) no longer works, you see this in the API log and the API returns 500:

INFO:heat.api.aws.ec2token:Checking AWS credentials..
2013-04-30 10:11:26.137 9073 INFO heat.api.aws.ec2token [-] AWS credentials found, checking against keystone.
INFO:heat.api.aws.ec2token:AWS credentials found, checking against keystone.
2013-04-30 10:11:26.137 9073 INFO heat.api.aws.ec2token [-] Authenticating with None
INFO:heat.api.aws.ec2token:Authenticating with None

# heat-boto list
ERROR:Failed to list. Got error:
ERROR:BotoServerError: 500 Internal Server Error
ERROR:None

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/27800

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/27800
Committed: http://github.com/openstack/heat/commit/cb381b90bd20551354e6ce5b0a99c836a3f777f5
Submitter: Jenkins
Branch: master

commit cb381b90bd20551354e6ce5b0a99c836a3f777f5
Author: Steven Hardy <email address hidden>
Date: Tue Apr 30 10:38:04 2013 +0100

    heat api: fix ec2token authentication

    Since the change merged from https://review.openstack.org/#/c/27383/
    ec2token auth no longer works, because there is a mismatch between
    the config file section name and the section specified in ec2token

    fixes bug #1174673

    Change-Id: I5c0465de5c023f587b677b10717ca3a08ba411b7