[api] heatSWConfigInstance doesn't allow string s-w configs

[Steve McLellan]

The contract for heat SW config sections is for a dictionary, which is fine for structured configs but not for e.g. scripts:

  heat-walrus-config:
    properties:
      config: |
          #!/bin/bash

        echo "I am the walrus"

      group: script
    type: OS::Heat::SoftwareConfig

Fix is to relax the restriction (though it might be neater to refactor the function).

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/114860

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/114860
Committed: https://git.openstack.org/cgit/stackforge/murano/commit/?id=b5530560fb3cfa21c580f20d7d34f36e737ed957
Submitter: Jenkins
Branch: master

commit b5530560fb3cfa21c580f20d7d34f36e737ed957
Author: Steve McLellan <email address hidden>
Date: Sun Aug 17 18:45:06 2014 -0500

    Allow strings in heat SW config configSection

    For non-structured configs, configSection cannot be restricted to a
    Map. Patch removes the contract type, although it is worth revisiting
    this to refactor slightly in future (which should be possible without
    changing the interface).

    Change-Id: I179e350a724965c97e90c3a1927f955c20cc2a72
    Closes-Bug: 1358046