supported OpenStack Quantum Router Operation. not include mock code.
added mock code for router operation.
fixed responce data from mock and removed vanilla options reject code.
[openstack|network] create_network provider extensions

Implements provider extensions when creating networks.

See:

http://docs.openstack.org/trunk/openstack-network/admin/content/provider_attributes.html

Complements #1581 (Added missing Network model attributes)
[openstack|network] Added missing router model/collection
[openstack|network] update_router request updates

- Filter out invalid options
- Add support for additional options:
  * name
  * admin_state_up
- external_gateway_info can be either a Hash or a
  Fog::Network::OpenStack::Network (see docs)
- Added documentation
[openstack|network] router model updates

- Added missing attributes
- Added documentation
[openstack|network] create_router request updates

- Filter out invalid options
[openstack|network] Added missing router related tests
@rubiojr wrote mock code for openstack routers.
@rubiojr fixed mock test failure.
@rubiojr fixed mock faulure for router(s)_tests.rb
[openstack|network] create_network provider extensions reworked

- Differenciate provider and vanilla options
- Fixed mocks
[openstack|network] remove extra trailing comma
[openstack|identity] moved identity example to the examples directory

It seems that we're standardizing on adding examples to the examples
directory so move previous identity example to this directory.
[rackspace] adding auth 2.0 to compute, databases, dns, load balancers, cloud block storage
[openstack|compute] Allow booting a VM with NICs (net_id, port_id, fixed_ip)
[openstack|compute] Use attribute accessor for nics
[rackspace|blockstorage] adding Cloud Block Storage Examples
[rackspace|compute_v2] updated compute_v2 to get the appropriate endpoint from the service catalog when an endpoint is specified via :rackspace_endpoint with one of the known constants (DFW_ENDPOINT, ORD_ENDPOINT, LON_ENDPOINT); updated compute examples to use rackspace region