provide a default api_extensions_path for nvp_plugin

[Aaron Rosen]

The NVP plugin has several extensions within it's plugin directory. In order to tell quantum-server to load this, api_extensions_path must be set in quantum.conf. This is sort of painful because one needs to set this value.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/22641

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/22641
Committed: http://github.com/openstack/quantum/commit/539ca3cb1071d3565205e0d50df8d3b2a96beb21
Submitter: Jenkins
Branch: master

commit 539ca3cb1071d3565205e0d50df8d3b2a96beb21
Author: Aaron Rosen <email address hidden>
Date: Thu Feb 21 15:50:21 2013 -0800

    Provide a default api_extensions_path for nvp_plugin

    The NVP plugin has several extensions within it's plugin directory. In order
    to tell quantum-server to load this, api_extensions_path must be set in
    quantum.conf. This is sort of painful because one needs to set this value.

    Fixes bug 1131469

    Change-Id: I8d124aa93f79dbeb8b2abac1c27765d5ebf449c2