CHANGELOG for version 0.10

Bug Fixes:

Changes:

- Adjust astakos authenticate to the new url scheme of synnefo >= 0.14 [#3832, #3874]
  as a side effect, some renamings in astakos.AstakosClient:
   info --> user_info, user --> list_users

Features:

- Implement an optional astakosclient cli exposed as "astakos", with the following methods:
    authenticate, uuid, username, quotas, service uuid/username/quotas
- Add some astakos/keystone kamaki-lib api calls [#3874], used to access astakos-calls cache:
  get_services, get_service_details, get_service_endpoints
- Implement floating ip methods for compute and cyclades clients [#3862]
 ComputeRestClient: floating_ip_pools_get, floating_ips_get/post/delete
 CycladesRestClient: floating_ip_pools_get, floating_ips_get/post/delete
 ComputeClient: get_floating_ip_pools, get_floating_ips,
    alloc/get_delete_floating_ip
 CycladesClient: get_floating_ip_pools, get_floating_ips,
    alloc/get_delete_floating_ip, dis/assoc_floating_ip_to_server