Update tools and themes

traccar-client/build.gradle

@@ -1,8 +1,8 @@
 apply plugin: 'android'
 
 android {
-    compileSdkVersion 21
-    buildToolsVersion "21.1.2"
+    compileSdkVersion 22
+    buildToolsVersion "22.0.1"
 
     defaultConfig {
         minSdkVersion 3