Add new realm button code to realmDialog

Author: kunall17

app/src/main/java/com/zulip/android/activities/RealmDialog.java

@@ -86,6 +86,10 @@ public void onClick(DialogInterface dialog, int whichButton) {
                 .setPositiveButton(R.string.realm_add, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int id) {
+                        Intent newIntent = new Intent(context, LoginActivity.class);
+                        newIntent.putExtra("FROM_ADDREALM", true);
+                        getActivity().startActivityForResult(newIntent, ZulipActivity.ADDREALM_REQUEST_CODE);
+                        RealmDialog.this.getDialog().cancel();
                     }
                 })
                 .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {

app/src/main/java/com/zulip/android/activities/ZulipActivity.java

@@ -146,6 +146,7 @@ public class ZulipActivity extends AppCompatActivity implements
     SimpleCursorAdapter streamActvAdapter;
     SimpleCursorAdapter subjectActvAdapter;
     SimpleCursorAdapter emailActvAdapter;
+    public static final int ADDREALM_REQUEST_CODE = 201;
 
     private BroadcastReceiver onGcmMessage = new BroadcastReceiver() {
         public void onReceive(Context contenxt, Intent intent) {