The following pool configuration would allow a pool to be aliased in POST
requests as 'centos-6-x86_64', 'centos-6-amd64', or 'centos-6-64':
````yaml
- name: 'centos-6-x86_64'
alias: [ 'centos-6-amd64', 'centos-6-64' ]
template: 'templates/centos-6-x86_64'
folder: 'vmpooler/centos-6-x86_64'
datastore: 'instance1'
size: 5
````
The 'alias' configuration can be either a string or an array.
Note that even when requesting an alias, the pool's 'name' is returned in
the JSON response:
````
$ curl -d '{"centos-6-64":"1"}' --url vmpooler/api/v1/vm
````
````json
{
"ok": true,
"centos-6-x86_64": {
"hostname": "cuna2qeahwlzji7"
},
"domain": "company.com"
}
````
This commit removes support for VMware 'resource pool' functionality
entirely, as VMware installations without the DRS feature enabled are
unable to configure or use resource pools.
Also, resource pools should have never been used for organization;
that's what folders are for.
