Convert the openstack compute instance security_group schema from a
list to set. This eliminates ordering problems and brings it in line
with the aws instance's security_group schema.

Change openstack router admin_state_up schema from a string to a bool,
similar to Mitchell's changes to fix #1741

Includes dupuy's changes which fixed a crash caused by these changes.

Only the azure_instance is fully working (for both Linux and Windows
instances) now, but needs some tests. network and disk and pretty much
empty, but the idea is clear so will not take too much time…

Starting to look pretty nice…

Fixes #1862

Next to the remaining docs, I also updated the code so any Virtual
Network related API calls are now synchronised by using a mutex (thanks
@aznashwan for pointing that out!).

This example is derived from @phinze's [work seen here](#1893 (comment))

This is a simple one.. Docs were missing a closing }

Switching the healthcheck from elb->ec2 or ec2->elb shouldn't cause the ASG to re-create itself

- added icmp_type attribute
- added icmp_code attribute
- fixed an issue hiding the error

refs #2116

…ation)

…ssociation)

Configure Google Compute Storage buckets using:
* name (compulsory attribute)
* predefined_acl (optional, default: `projectPrivate`)
* location (optional, default: `US`)
* force_destroy (optional, default: `false`)

Currently supporting only `predefined_acl`s. Bucket attribute updates happen via re-creation. force_destroy will cause bucket objects to be purged, enabling bucket destruction.

Turns out to be a pretty obvious bug with a simple fix…

 * update Vagrantfile to modern Consul-style version
 * add `make release` for a one-shot command to get from fresh vagrant
   machine to a built release
 * add RELEASING.md to document details about the release process

accidentally pushed this with an implicit dependency on the default SG
and VPC

Closes #2069

Adds update method for ElastiCache Subnet Groups, things are not all ForceNew
anymore.

- can update description
- can update subnet ids

If a tilde is used in the path, this makes sure we expand it to a full
path.

they work on maps with both keys and values that are string types, which
AFAICT are the only types of maps we have right now.

closes #1915

Both to_ and from_ port must be zero to use protocol -1.