[openstack|metering] Added metering service for Ceilometer
[openstack|metering] Allow multiple filtering queries
Merge pull request #1 from alvingarcia/metering

[openstack|metering] Allow multiple filtering queries
Used publicURL as default endpoint type for OpenStack network
[openstack|metering] Fix get_statistics mock
Merge pull request #2 from alvingarcia/openstack-metering

[openstack|metering] Fix get_statistics mock
Rename 'each' method to 'each_page'
Create separate Gemfile for Ruby 1.8.7
Update nokogiri dependency to version ~>1.5
Passing the connection_options parameter to underlying Fog::Storage object.

This aids in scenarios where you want to maintain the s3.amazonaws.com hostname
(for S3 client compatibility), but want to store data in Riak CS.
Passing the connection_options parameter to underlying Fog::Storage object
for Fog::RiakCS::Provisioning.
[openstack|volume] support imageRef option

Volumes can be created with the imageRef option, which dictates which
image to base the volume off.
[openstack|compute] support block_device_mapping

Servers can be booted with block_device_mapping instead of image_id.
Loop over Marker header in 'all', remove 'each'
Add note about installing on Ruby 1.8.7 [ci skip]
Restore implementation of each/all
[Openstack|volume] Add #get to volumes collection

This fixes reloading Volume objects and makes it consistent with other
collections.

Keeping find_by_id as an alias for compatibility.
Add basic error handling for Fog::AWS::SES.
Convert the raw_message for send_raw_email, just in case.

* This allows others to directly send Mail::Message objects via
  send_raw_email.
Raise Fog::AWS::SES::InvalidParameterError for InvalidParameterValue.