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] 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
Removed Zerigo::Models::DNS::Records#find method, moved functionality to all(options)
Removed Rackspace::Models::DNS::Zones#find, moved functionality to all(options)
fixed infinite loop in each method of AWS Distributions
add a test to protect certain Enumerable methods in Fog::Collection subclasses
[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.
[hp|storage] marker option in each method needs to be a string
Merge pull request #1661 from helle/enumerable_fixes

Enumerable fixes
Update changelog and bump version.
container sync attributes
Fix names of the container sync attributes.