bump gradle plugin, build-tools and support lib versions

Change-Id: I94036432e23b2d73b6e2006ed49f9890ae11aa05

android/source/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.0'
+        classpath 'com.android.tools.build:gradle:2.2.2'
     }
 }
 
@@ -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-v7:23.0.1'
-    compile 'com.android.support:design:23.1.0'
+    compile 'com.android.support:appcompat-v7:23.4.0'
+    compile 'com.android.support:design:23.4.0'
 }
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "23.0.2"
+    buildToolsVersion "23.0.3"
     compileOptions {
         // silence some java-language features hints
         sourceCompatibility 6