Update gradle dependencies

android_10/build.gradle

@@ -18,6 +18,7 @@ dependencies {
   compile "org.ros.rosjava_core:rosjava:[0.3,0.4)"
   compile "org.ros.rosjava_messages:diagnostic_msgs:[1.12,1.13)"
   compile "org.ros.rosjava_messages:sensor_msgs:[1.12,1.13)"
+  compile "com.android.support:appcompat-v7:22.2.1"
 }
 
 apply plugin: "com.android.library"
@@ -27,7 +28,7 @@ android {
 
   defaultConfig {
     minSdkVersion 10
-    targetSdkVersion 10
+    targetSdkVersion 22
     versionCode 1
     versionName "1.0"
   }