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

Closes #2998

Author: mp911de

README.adoc

@@ -119,9 +119,9 @@ 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

@@ -571,8 +571,18 @@
 
 	<repositories>
 		<repository>
-			<id>spring-libs-snapshot</id>
-			<url>https://repo.spring.io/libs-snapshot</url>
+			<id>spring-snapshot</id>
+			<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>
 

src/main/asciidoc/preface.adoc

@@ -8,6 +8,5 @@ Spring Data JPA provides repository support for the Java Persistence API (JPA).
 
 * Version control: https://github.com/spring-projects/spring-data-jpa
 * Bugtracker: https://github.com/spring-projects/spring-data-jpa/issues
-* Release repository: https://repo.spring.io/libs-release
-* Milestone repository: https://repo.spring.io/libs-milestone
-* Snapshot repository: https://repo.spring.io/libs-snapshot
+* Milestone repository: https://repo.spring.io/milestone
+* Snapshot repository: https://repo.spring.io/snapshot