Fix an issue when upgrading from Terraform < 0.9 to 0.9+, when we added
support for the regional endpoints in OpsWorks Stacks. OpsWorks Stacks
can only be managed via the endpoint with which they were created, not
where the stack resides.

environment docs

List backends supporting environments.
Note character restrictions for environment names.

disallow env names that aren't url-safe

Don't Validate if we have an execution plan

The apply won't succeed because we don't have a valid plan, but this
verifies that providing a plan file prevents Validation.

Environment names can be used in a number of contexts, and should be
properly escaped for safety. Since most state names are store in path
structures, and often in a URL, use `url.PathEscape` to check for
disallowed characters

The plan file should contain all data required to execute the apply
operation. Validation requires interpolation, and the `file()`
interpolation function may fail if the module files are not present.
This is the case currently with how TFE executes plans.

* provider/openstack: Add all_fixed_ips computed attribute to port resource

This commit adds the `all_fixed_ips` attribute to the
openstack_networking_port_v2 resource. This contains all of the port's
Fixed IPs returned by the Networking v2 API.

* provider/openstack: Revert Port fixed_ip back to a List

This commit reverts the changes made in a8c4e81a6e3f2. This
re-enables the ability to reference IP addresses using the
numerical-element notation.

This commit also makes fixed_ip a non-computed field, meaning
Terraform will no longer set fixed_ip with what was returned
by the API. This resolves the original issue about ordering.

The last use-case is for fixed_ips that received an IP address
via DHCP. Because fixed_ip is no longer computed, the DHCP IP
will not be set. The workaround for this use-case is to use the
new all_fixed_ips attribute.

In effect, users should use fixed_ip only as a way of inputting
data into Terraform and use all_fixed_ips as the output returned
by the API. If use-cases exist where fixed_ip can be used as an
output, that's a bonus feature.

This commit adds the all_metadata attribute which contains all
instance metadata returned from the OpenStack Compute API. This
is useful for gaining access to metadata which was applied
out of band of Terraform.

This commit also stops setting the original metadata attribute,
effectively making metadata an input and all_metadata the output
to reference all data from.

```
% make testacc TEST=./builtin/providers/packet TESTARGS='-run=TestAccPacketSSHKey_Basic'            ✭
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/03/27 18:56:06 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/packet -v -run=TestAccPacketSSHKey_Basic -timeout 120m
=== RUN   TestAccPacketSSHKey_Basic
--- PASS: TestAccPacketSSHKey_Basic (5.30s)
PASS
ok  	github.com/hashicorp/terraform/builtin/providers/packet	5.316s
```

```
% make testacc TEST=./builtin/providers/digitalocean TESTARGS='-run=TestAccDigitalOceanSSHKey_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/03/27 19:29:01 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/digitalocean -v -run=TestAccDigitalOceanSSHKey_ -timeout 120m
=== RUN   TestAccDigitalOceanSSHKey_importBasic
--- PASS: TestAccDigitalOceanSSHKey_importBasic (4.18s)
=== RUN   TestAccDigitalOceanSSHKey_Basic
--- PASS: TestAccDigitalOceanSSHKey_Basic (2.77s)
PASS
ok  	github.com/hashicorp/terraform/builtin/providers/digitalocean	6.991s
```

* Adding import to resource_aws_iam_server_certificate.

* provider/aws: Update tests for import of aws_iam_server_certificate

Builds upon the work of @mrcopper in #12940

Resource:
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSIAMServerCertificate_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/03/25 00:08:48 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAccAWSIAMServerCertificate_ -timeout 120m
=== RUN   TestAccAWSIAMServerCertificate_importBasic
--- PASS: TestAccAWSIAMServerCertificate_importBasic (22.81s)
=== RUN   TestAccAWSIAMServerCertificate_basic
--- PASS: TestAccAWSIAMServerCertificate_basic (19.68s)
=== RUN   TestAccAWSIAMServerCertificate_name_prefix
--- PASS: TestAccAWSIAMServerCertificate_name_prefix (19.88s)
=== RUN   TestAccAWSIAMServerCertificate_disappears
--- PASS: TestAccAWSIAMServerCertificate_disappears (13.94s)
=== RUN   TestAccAWSIAMServerCertificate_file
--- PASS: TestAccAWSIAMServerCertificate_file (32.67s)
PASS
ok  	github.com/hashicorp/terraform/builtin/providers/aws	109.062s
```

Data Source:
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSDataSourceIAMServerCertificate_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/03/25 13:07:10 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAccAWSDataSourceIAMServerCertificate_ -timeout 120m
=== RUN   TestAccAWSDataSourceIAMServerCertificate_basic
--- PASS: TestAccAWSDataSourceIAMServerCertificate_basic (43.86s)
=== RUN   TestAccAWSDataSourceIAMServerCertificate_matchNamePrefix
--- PASS: TestAccAWSDataSourceIAMServerCertificate_matchNamePrefix (2.68s)
PASS
ok  	github.com/hashicorp/terraform/builtin/providers/aws	46.569s
```

Include `name` in the exported attributes of `google_compute_network`'s documentation

kubernetes: Ignore internal K8S annotations in config_map + use PATCH

```
% make testacc TEST=./builtin/providers/vsphere TESTARGS='-run=TestAccVSphereVirtualDisk_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/03/27 18:08:08 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/vsphere -v -run=TestAccVSphereVirtualDisk_ -timeout 120m
=== RUN   TestAccVSphereVirtualDisk_basic
--- PASS: TestAccVSphereVirtualDisk_basic (8.57s)
PASS
ok  	github.com/hashicorp/terraform/builtin/providers/vsphere	8.591s
```

Merge branch 'vsphere-disk-capacity' of https://github.com/peay/terraform into peay-vsphere-disk-capacity

In function `resourceAwsSesReceiptRuleRead` the position of the receipt
rules in the rule set was taken directly from the index of the rule's
position in the slice returned by the AWS API call. As the slice is
zero-based and the ruleset is one-based, this results in an incorrect
representation.

This manifests as `aws_ses_receipt_rule` resources always showing a
diff during plan or apply.