limit width of headline context menu indicator

AndroidManifest.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.fox.ttrss"
-    android:versionCode="92"
+    android:versionCode="93"
     android:versionName="0.7.1" >
 
     <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="11" />

res/layout-port/headlines_row.xml

@@ -138,7 +138,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout-port/headlines_row_selected.xml

@@ -139,7 +139,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout-port/headlines_row_unread.xml

@@ -138,7 +138,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout-sw600dp-port/headlines_row_selected.xml

@@ -131,7 +131,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout-sw600dp/headlines_row.xml

@@ -131,7 +131,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout-sw600dp/headlines_row_selected.xml

@@ -131,7 +131,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout-sw600dp/headlines_row_unread.xml

@@ -131,7 +131,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout/headlines_row.xml

@@ -143,7 +143,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout/headlines_row_selected.xml

@@ -143,7 +143,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"

res/layout/headlines_row_unread.xml

@@ -143,7 +143,7 @@
 
     <ImageButton
         android:id="@+id/article_menu_button"
-        android:layout_width="match_parent"
+        android:layout_width="50dp"
         android:layout_height="wrap_content"
         android:layout_gravity="right"
         android:background="@android:color/transparent"