9th release version 2.3.0

New features:
  - Support for Froyo and up.

Optimization:
  - Uses the old api if the new api is down.

Modification:
 - Grouped constants to their own class.
 - Modified build.gradle for 9th release.

Author: emcorrales

app/src/main/java/com/pinoymobileapps/mrtcctv/MainActivity.java

@@ -25,20 +25,6 @@ public class MainActivity extends AppCompatActivity {
     private static final String KEY_STATION = "key_station";
     private static final String KEY_CAMERA = "key_camera";
 
-    private static final int NORTH_AVE = 0;
-    private static final int QUEZON_AVE = 1;
-    private static final int KAMUNING = 2;
-    private static final int CUBAO = 3;
-    private static final int SANTOLAN = 4;
-    private static final int ORTIGAS = 5;
-    private static final int SHAW_BLVD = 6;
-    private static final int BONI = 7;
-    private static final int GUADALUPE = 8;
-    private static final int BUENDIA = 9;
-    private static final int AYALA = 10;
-    private static final int MAGALLANES = 11;
-    private static final int TAFT = 12;
-
     @Nullable
     @Bind(R.id.drawer_layout)
     DrawerLayout mDrawerLayout;
@@ -91,7 +77,7 @@ protected void onCreate(Bundle savedInstanceState) {
         ButterKnife.bind(this);
 
         initStrings();
-        int stationId = NORTH_AVE;
+        int stationId = Stations.NORTH_AVE;
         int cameraId = 1;
 
         if (savedInstanceState != null) {
@@ -244,55 +230,55 @@ private void changeStation(final int stationId) {
         }
 
         switch (mCurrentStationId) {
-            case NORTH_AVE:
+            case Stations.NORTH_AVE:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case QUEZON_AVE:
+            case Stations.QUEZON_AVE:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case KAMUNING:
+            case Stations.KAMUNING:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case CUBAO:
+            case Stations.CUBAO:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case SANTOLAN:
+            case Stations.SANTOLAN:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case ORTIGAS:
+            case Stations.ORTIGAS:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case SHAW_BLVD:
+            case Stations.SHAW_BLVD:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case BONI:
+            case Stations.BONI:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case GUADALUPE:
+            case Stations.GUADALUPE:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case BUENDIA:
+            case Stations.BUENDIA:
                 updateTextsOfButtons(nbPlatform, ticketing1, sbPlatform, ticketing2);
                 break;
 
-            case AYALA:
+            case Stations.AYALA:
                 updateTextsOfButtons(nbPlatform, ticketing1, sbPlatform, ticketing2);
                 break;
 
-            case MAGALLANES:
+            case Stations.MAGALLANES:
                 updateTextsOfButtons(nbPlatform, nbTicketing, sbPlatform, sbTicketing);
                 break;
 
-            case TAFT:
+            case Stations.TAFT:
                 updateTextsOfButtons(nbPlatform1, ticketing1, nbPlatform2, ticketing2);
                 break;