(room) add room gradle file

app/build.gradle

@@ -54,7 +54,10 @@ dependencies {
         exclude module: 'support-v4'
     }
     testCompile 'junit:junit:4.12'
+
+    //room
     compile "android.arch.persistence.room:runtime:1.0.0-alpha3"
     annotationProcessor "android.arch.persistence.room:compiler:1.0.0-alpha3"
+    compile "android.arch.persistence.room:rxjava2:1.0.0-alpha2"
 
 }

app/src/main/java/com/keylesspalace/tusky/TuskyApplication.java

@@ -28,6 +28,10 @@ public class TuskyApplication extends Application {
 
     private static AppDatabase db;
 
+    public static AppDatabase getDB() {
+        return db;
+    }
+
     @Override
     public void onCreate() {
         super.onCreate();
@@ -54,10 +58,6 @@ public class TuskyApplication extends Application {
         }
 
         db = Room.databaseBuilder(getApplicationContext(),
-                AppDatabase.class, "tuskyDB").build();
-    }
-
-    public static AppDatabase getDB() {
-        return db;
+                AppDatabase.class, "tuskyDB").allowMainThreadQueries().build();
     }
 }