Use snapshot and milestone repositories instead of libs-snapshot and libs-milestone.

Closes #501

README.adoc

@@ -89,9 +89,9 @@ If you'd rather like the latest snapshots of the upcoming major version, use our
 </dependency>
 
 <repository>
-  <id>spring-libs-snapshot</id>
+  <id>spring-snapshot</id>
   <name>Spring Snapshot Repository</name>
-  <url>https://repo.spring.io/libs-snapshot</url>
+  <url>https://repo.spring.io/snapshot</url>
 </repository>
 ----
 

pom.xml

@@ -84,20 +84,19 @@
 
 	<repositories>
 		<repository>
-			<id>spring-libs-snapshot</id>
+			<id>spring-snapshot</id>
-			<url>https://repo.spring.io/libs-snapshot</url>
+			<url>https://repo.spring.io/snapshot</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+			<releases>
+				<enabled>false</enabled>
+			</releases>
+		</repository>
+		<repository>
+			<id>spring-milestone</id>
+			<url>https://repo.spring.io/milestone</url>
 		</repository>
 	</repositories>
 
-	<pluginRepositories>
-		<pluginRepository>
-			<id>spring-plugins-release</id>
-			<url>https://repo.spring.io/plugins-release</url>
-		</pluginRepository>
-		<pluginRepository>
-			<id>spring-libs-milestone</id>
-			<url>https://repo.spring.io/libs-milestone</url>
-		</pluginRepository>
-	</pluginRepositories>
-
 </project>

src/main/asciidoc/preface.adoc

@@ -2,11 +2,10 @@
 = Preface
 
 [[project]]
-[preface]
 == Project Metadata
 
 * Version control: https://github.com/spring-projects/spring-data-keyvalue
 * Bugtracker: https://github.com/spring-projects/spring-data-keyvalue/issues
-* Release repository: https://repo.spring.io/libs-release
+* Release repository: https://repo1.maven.org/maven2/
-* Milestone repository: https://repo.spring.io/libs-milestone
+* Milestone repository: https://repo.spring.io/milestone
-* Snapshot repository: https://repo.spring.io/libs-snapshot
+* Snapshot repository: https://repo.spring.io/snapshot