bump version to 2.5-SNAPSHOT (#21946)

* project/scripts/find-replace 2.4-SNAPSHOT 2.5-SNAPSHOT

akka-samples/akka-sample-main-java-lambda/build.sbt

@@ -1,11 +1,11 @@
 name := "akka-sample-main-java-lambda"
 
-version := "2.4-SNAPSHOT"
+version := "2.5-SNAPSHOT"
 
 scalaVersion := "2.11.8"
 
 libraryDependencies ++= Seq(
-  "com.typesafe.akka" %% "akka-actor" % "2.4-SNAPSHOT"
+  "com.typesafe.akka" %% "akka-actor" % "2.5-SNAPSHOT"
 )
 
 licenses := Seq(("CC0", url("http://creativecommons.org/publicdomain/zero/1.0")))

akka-samples/akka-sample-main-java-lambda/pom.xml

@@ -7,7 +7,7 @@
   <artifactId>akka-sample-main-java-lambda</artifactId>
   <groupId>com.typesafe.akka.samples</groupId>
   <name>Akka Main in Java</name>
-  <version>2.4-SNAPSHOT</version>
+  <version>2.5-SNAPSHOT</version>
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -17,7 +17,7 @@
     <dependency>
       <groupId>com.typesafe.akka</groupId>
       <artifactId>akka-actor_2.11</artifactId>
-      <version>2.4-SNAPSHOT</version>
+      <version>2.5-SNAPSHOT</version>
     </dependency>
   </dependencies>
 

akka-samples/akka-sample-main-java-lambda/tutorial/index.html

@@ -76,7 +76,7 @@ This conveniently assumes placement of the above class definitions in package
 <code>sample.hello</code> and it further assumes that you have the required JAR files for
 <code>scala-library</code>, <code>typesafe-config</code> and <code>akka-actor</code> available.
 The easiest would be to manage these dependencies with a
-<a href="http://doc.akka.io/docs/akka/2.4-SNAPSHOT/intro/getting-started.html#Using_a_build_tool" target="_blank">build tool</a>.
+<a href="http://doc.akka.io/docs/akka/2.5-SNAPSHOT/intro/getting-started.html#Using_a_build_tool" target="_blank">build tool</a>.
 </p>
 
 <p>