fix appending new headlines on scroll

remove unused stuff from preferences

res/xml/preferences.xml

@@ -94,11 +94,6 @@
             android:summary="@string/combined_mode_summary"
             android:title="@string/combined_mode" />
 
-        <CheckBoxPreference
-            android:defaultValue="false"
-            android:key="tablet_article_swipe"
-            android:title="@string/tablet_article_swipe" />
-
         <CheckBoxPreference
             android:defaultValue="true"
             android:key="justify_article_text"

src/org/fox/ttrss/FeedsActivity.java

@@ -225,6 +225,7 @@ public class FeedsActivity extends OnlineActivity implements HeadlinesEventListe
 				
 				//intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
 		 	   
+				overridePendingTransition(android.R.anim.slide_in_left, android.R.anim.slide_out_right);
 				startActivityForResult(intent, 0);
 			}
 		} else {

src/org/fox/ttrss/HeadlinesFragment.java

@@ -359,7 +359,7 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 		final boolean isCat = m_feed.is_cat;
 		int skip = 0;
 		
-		if (!m_feed.equals(TinyApplication.getInstance())) {
+		if (!m_feed.equals(TinyApplication.getInstance().m_activeFeed)) {
 			append = false;
 		}
 		

src/org/fox/ttrss/PreferencesActivity.java

@@ -20,11 +20,6 @@ public class PreferencesActivity extends PreferenceActivity {
 		
 		addPreferencesFromResource(R.xml.preferences);
 
-		if ((getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) != Configuration.SCREENLAYOUT_SIZE_XLARGE) {
-			PreferenceCategory category = (PreferenceCategory)findPreference("category_look_and_feel");
-			category.removePreference(findPreference("tablet_article_swipe"));
-		}
-		
 		findPreference("justify_article_text").setEnabled(!prefs.getBoolean("combined_mode", false));
 		
 		findPreference("combined_mode").setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {			

src/org/fox/ttrss/types/Feed.java

@@ -32,6 +32,9 @@ public class Feed implements Comparable<Feed>, Parcelable {
 		if (feed == this) 
 			return true;
 		
+		if (feed == null)
+			return false;
+		
 		return feed.id == this.id && (this.title == null || this.title.equals(feed.title)) && this.is_cat == feed.is_cat;
 	}