Replace Chinese punctuation with English punctuation

Curly quotes(Chinese punctuation) usually input from Chinese input method.
When read from english context, it makes some confusion.

Change-Id: I9b8830179fb98f3a6bef479bbaa12df70311269a

api-ref/source/v2/metadefs-index.rst

@@ -49,7 +49,7 @@ the metadata facilities provided by the appropriate API.  (For example, the
 Images API would be used to put specific key:value pairs on a virtual machine
 image.)
 
-A metadefs definition includes a property’s key, its description, its
+A metadefs definition includes a property's key, its description, its
 constraints, and the resource types to which it can be associated.  See
 `Metadata Definition Concepts
 <http://docs.openstack.org/developer/glance/metadefs-concepts.html>`_ in the

doc/source/contributor/domain_implementation.rst

@@ -86,7 +86,7 @@ There are two types of image properties in Glance:
   to an image
 
 The property protection layer manages access to the meta properties
-through Glance’s public API calls. You can restrict the access in the
+through Glance's public API calls. You can restrict the access in the
 property protection configuration file.
 
 .. _notifier:

doc/source/contributor/domain_model.rst

@@ -31,7 +31,7 @@ model object as with a common object.
 Inner architecture
 ~~~~~~~~~~~~~~~~~~
 
-Each layer defines its own operations’ implementation through a
+Each layer defines its own operations' implementation through a
 special ``proxy`` class. At first, operations are performed on the
 upper layer, then they successively pass the control to the underlying
 layers.

doc/source/glossary.rst

@@ -2926,7 +2926,7 @@ P
 
    project
 
-      Projects represent the base unit of “ownership” in OpenStack,
+      Projects represent the base unit of "ownership" in OpenStack,
       in that all resources in OpenStack should be owned by a specific project.
       In OpenStack Identity, a project must be owned by a specific domain.
 

doc/source/user/statuses.rst

@@ -40,7 +40,7 @@ Images in Glance can be in one of the following statuses:
   Denotes that an import data-put call has been made. While in this status, a
   call to `PUT /file` is disallowed. (Note that a call to `PUT /file` on a
   queued image puts the image into saving status. Calls to `PUT /stage` are
-  disallowed while an image is in saving status. Thus it’s not possible to
+  disallowed while an image is in saving status. Thus it's not possible to
   use both upload methods on the same image.)
 
 * ``importing``