Bumped version numbers in Gradle

It builds correctly.
Note that the target version remained the same (22) instead of the current 25.

Change-Id: Ic14fc5b2e5aa04d621e86249d33c1d6d9bdce3c2
Reviewed-on: https://gerrit.libreoffice.org/32495Reviewed-by: jan iversen <jani@documentfoundation.org>
Tested-by: jan iversen <jani@documentfoundation.org>

android/source/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.2'
+        classpath 'com.android.tools.build:gradle:2.2.3'
     }
 }
 
@@ -24,13 +24,13 @@ dependencies {
     ])
     compile files("${liboInstdir}/${liboShareJavaFolder}/unoil.jar")
     compile files("${liboWorkdir}/UnpackedTarball/owncloud_android_lib/bin/owncloud-android-library.jar")
-    compile 'com.android.support:appcompat-v7:23.4.0'
-    compile 'com.android.support:design:23.4.0'
+    compile 'com.android.support:appcompat-v7:25.1.0'
+    compile 'com.android.support:design:25.1.0'
 }
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    compileSdkVersion 25
+    buildToolsVersion "25.0.1"
     compileOptions {
         // silence some java-language features hints
         sourceCompatibility 6