[google] Add support for network and external_ip

 * Add support for an other network than default
   ("default" network is still default network)
 * Can specify if creation or not of an external_ip
   (External_ip is still created by default)
[google-compute-engine] Add private_ip_address method for server
Merge branch 'new-network' of https://github.com/rvrignaud/fog into rvrignaud-new-network
[google] Add support for network and external_ip

 * Add support for an other network than default
   ("default" network is still default network)
 * Can specify if creation or not of an external_ip
   (External_ip is still created by default)
 * Add private_ip_address method for server
 * Add example for vm creation with network
Merge branch 'new-network' of https://github.com/rvrignaud/fog into rvrignaud-new-network
Examples tweak
remove networks
Merge branch 'master' into new-network
[google|compute] better check on server.public_ip_address
[aws|elb] add new style default security group

* AWS VPC enabled accounts have a new style security
  group separate from the 'amazon-elb-sg' group.
* added describe account attributes call
* use account attributes to determine elb security group
[rackspace|monitoring] replaced entity_id and check_id attributes with entity and check attributes; removed entity_id from base module.
[core] excluded :headers hash from symbolize_credentials in order to properly pass headers onto Excon
[google|compute] Fix insert disk to deal with changes to insert image.
Merge pull request #2009 from rvrignaud/new-network

[google|compute] Add support for network and external_ip during server creation
add support for m3.xlarge and m3.2xlarge instance flavors
Merge pull request #2058 from n3bulous/add-new-aws-m3-flavors

Add support for AWS m3.xlarge and m3.2xlarge instance flavors
Add 'status' attribute to GCE images.

Subsequent 'get' or 'reload' of the image will cause this to be
populated, and the user will be able to tell when it is 'READY'.
Merge pull request #2057 from icco/fix_image_test

[google|compute] Fix insert disk to deal with changes to insert image.
Merge pull request #2059 from maginatics/master

[google|compute] Add 'status' attribute to GCE images.
Merge pull request #2056 from rackspace/exclude_headers

[core] Exclude :headers hash from symbolize_credentials