Update to Guava 25.1-android.

It's required by Truth 0.41, which we switched to in CL 200574789.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=202732649

build.xml

@@ -116,8 +116,8 @@
         <pathelement location="${build.dir}/dist/guice-${version}.jar"/>
         <pathelement location="lib/javax.inject.jar"/>
         <pathelement location="lib/aopalliance.jar"/>
-        <pathelement location="lib/guava-19.0.jar"/>
-        <pathelement location="lib/build/guava-testlib-19.0.jar"/>
+        <pathelement location="lib/guava-25.1-android.jar"/>
+        <pathelement location="lib/build/guava-testlib-25.1-android.jar"/>
         <pathelement location="lib/build/junit.jar"/>
         <pathelement location="lib/build/servlet-api-2.5.jar"/>
         <pathelement location="lib/build/truth-0.41.jar"/>

core/test/com/googlecode/guice/OSGiContainerTest.java

@@ -52,7 +52,7 @@ public class OSGiContainerTest extends TestCase {
   /*end[AOP]*/
   static final String JAVAX_INJECT_JAR =
       System.getProperty("javax.inject.jar", "lib/javax.inject.jar");
-  static final String GUAVA_JAR = System.getProperty("guava.jar", "lib/guava-19.0.jar");
+  static final String GUAVA_JAR = System.getProperty("guava.jar", "lib/guava-25.1-android.jar");
 
   // dynamically build test bundles
   @Override

pom.xml

@@ -144,12 +144,12 @@ See the Apache License Version 2.0 for the specific language governing permissio
       <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava</artifactId>
-        <version>23.6-android</version>
+        <version>25.1-android</version>
       </dependency>
       <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava-testlib</artifactId>
-        <version>23.6-android</version>
+        <version>25.1-android</version>
       </dependency>
       <dependency>
         <groupId>org.ow2.asm</groupId>