Update design statuses.

* Updated design documents to clarify that 'Complete' features are actually just 'Released', because features are never complete.
* Update design documents to mark request presigners as 'Released'.

Author: millems

docs/design/ClientConfiguration.md

@@ -1,4 +1,4 @@
-**Design:** Convention, **Status:** [Complete](README.md)
+**Design:** Convention, **Status:** [Accepted](README.md)
 
 ## Client Configuration
 

docs/design/FavorStaticFactoryMethods.md

@@ -1,4 +1,4 @@
-**Design:** Convention, **Status:** [Complete](README.md)
+**Design:** Convention, **Status:** [Accepted](README.md)
 
 ## Favor Static Factory Methods Over Constructors
 

docs/design/NamingConventions.md

@@ -1,4 +1,4 @@
-**Design:** Convention, **Status:** [Complete](README.md)
+**Design:** Convention, **Status:** [Accepted](README.md)
 
 ## Naming Conventions
 

docs/design/README.md

@@ -28,9 +28,15 @@ decided.*
   \- Automatically reconnects to an event streaming session when they are
   interrupted by a network error.
 
-**Completed**
+**Released**
 
-None
+*These features are considered "mostly implemented". Development on new features 
+is never "done". These features are considered "done enough" that any remaining 
+design elements or features can be implemented incrementally based on customer 
+demand.*
+
+* [Request Presigners](core/presigners/README.md) - Makes it possible to sign 
+  requests to be executed at a later time. 
 
 **Rejected**
 
@@ -42,7 +48,7 @@ None
 
 None
 
-**Completed**
+**Accepted**
 
 * [Class Initialization](FavorStaticFactoryMethods.md) - Conventions
   used to initialize a class.

docs/design/UseOfCompletableFuture.md

@@ -1,4 +1,4 @@
-**Design:** Convention, **Status:** [Complete](README.md)
+**Design:** Convention, **Status:** [Accepted](README.md)
 
 ## Use of CompletableFuture
 

docs/design/UseOfOptional.md

@@ -1,4 +1,4 @@
-**Design:** Convention, **Status:** [Complete](README.md)
+**Design:** Convention, **Status:** [Accepted](README.md)
 
 ## Use of Optional
 

docs/design/core/presigners/README.md

@@ -1,4 +1,6 @@
-## Feature Overview
+**Design:** New Feature, **Status:** [Released](../../../README.md)
+
+# Request Presigners
 
 "Presigned URLs" are a generic term usually used for an AWS request that has been signed using
 [SigV4's query parameter signing](https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html) so that it can be