Glance CLI was corrupted with unicode interaction

Detailed bug description:

 Glance CLI client return a 'UnicodeEncodeError' when creating an image with using unicode characters in name.

Steps to reproduce:

 1. Make ssh to controller.
 2. Use command:
       . openrc && env PYTHONIOENCODING=UTF-8 glance --debug --os-image-api-version 1 image-create --name 試験画像_1

Expected results:

 root@node-1:~# . openrc && env PYTHONIOENCODING=UTF-8 glance --debug --os-image-api-version 1 image-create --name 試験画像_1
+------------------+--------------------------------------+
| Property | Value |
+------------------+--------------------------------------+
| checksum | None |
| container_format | None |
| created_at | 2016-04-25T11:05:15.000000 |
| deleted | False |
| deleted_at | None |
| disk_format | None |
| id | b3da0f6e-a8dd-4124-b72e-4eabf7f6f4c2 |
| is_public | False |
| min_disk | 0 |
| min_ram | 0 |
| name | kek_1 |
| owner | eeb47d2783794ea583dc4790e4bd6459 |
| protected | False |
| size | 0 |
| status | queued |
| updated_at | 2016-04-25T11:05:15.000000 |
| virtual_size | None |
+------------------+--------------------------------------+

Actual result:
 root@node-1:~# glance --debug --os-image-api-version 1 image-create --name 試験画像_1
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/glanceclient/shell.py", line 595, in main
    args.func(client, args)
  File "/usr/lib/python2.7/dist-packages/glanceclient/common/utils.py", line 98, in func_wrapper
    return func(gc, args)
  File "/usr/lib/python2.7/dist-packages/glanceclient/v1/shell.py", line 258, in do_image_create
    image = gc.images.create(**fields)
  File "/usr/lib/python2.7/dist-packages/glanceclient/v1/images.py", line 324, in create
    data=image_data)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/adapter.py", line 182, in post
    return self.request(url, 'POST', **kwargs)
  File "/usr/lib/python2.7/dist-packages/glanceclient/common/http.py", line 318, in request
    **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/adapter.py", line 101, in request
    return self.session.request(url, method, **kwargs)
  File "/usr/lib/python2.7/dist-packages/positional/__init__.py", line 94, in inner
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/session.py", line 405, in request
    resp = send(**kwargs)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/session.py", line 439, in _send_request
    resp = self.session.request(method, url, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 468, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 576, in send
    r = adapter.send(request, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/adapters.py", line 376, in send
    timeout=timeout
  File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 559, in urlopen
    body=body, headers=headers)
  File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 353, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/lib/python2.7/httplib.py", line 979, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python2.7/httplib.py", line 1012, in _send_request
    self.putheader(hdr, value)
  File "/usr/lib/python2.7/httplib.py", line 959, in putheader
    hdr = '%s: %s' % (header, '\r\n\t'.join([str(v) for v in values]))
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-3: ordinal not in range(128)
'ascii' codec can't encode characters in position 0-3: ordinal not in range(128)

Reproducibility:

 Only with using API v1 ( --os-image-api-version 1).

Workaround:

 Use v2 or Horizon to work with images.

Impact:

 -

Description of the environment:

 - Glance python client version:
      root@node-1:~# glance --version
       2.0.0
 - Shotgun2 report: http://paste.openstack.org/show/495287/
 - MOS/Fuel: mitaka-9.0-229

Additional information:

 Package version: python-glanceclient/mos9.0,now 1:2.0.0-1~u14.04+mos0 all [installed,automatic]