Enable more lint checks

android/java/app/build.gradle

@@ -22,7 +22,10 @@ android {
         exclude 'META-INF/NOTICE.txt'
     }
 
-
+    lintOptions {
+        checkAllWarnings true
+        disable 'UnusedAttribute'
+    }
 
     buildTypes {
         release {

android/java/app/src/main/AndroidManifest.xml

@@ -9,7 +9,8 @@
         android:allowBackup="false"
         android:icon="@drawable/icon_burned"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        android:supportsRtl="true">
         <activity
             android:name="com.mapbox.mapboxgl.app.MainActivity"
             android:label="@string/app_name"

android/java/app/src/main/res/layout/fragment_main.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <com.mapbox.mapboxgl.lib.MapView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/map"
     android:layout_width="match_parent"
     android:layout_height="match_parent" />

android/java/lib/build.gradle

@@ -16,6 +16,10 @@ android {
         targetCompatibility JavaVersion.VERSION_1_7
     }
 
+    lintOptions {
+        checkAllWarnings true
+    }
+
     buildTypes {
         debug {
             jniDebuggable true