fix wrong heading of notes field,

fix sorting of groups (not case sensitive)

src/keepass2android/PwGroupListAdapter.cs

@@ -149,7 +149,7 @@ namespace keepass2android
 
 		public int CompareGroups(PwGroup a, PwGroup b)
 		{
-			return String.CompareOrdinal(a.Name, b.Name);
+			return String.Compare(a.Name, a.Name, StringComparison.OrdinalIgnoreCase);
 		}
 	}
 

src/keepass2android/Resources/layout/entry_view_contents.xml

@@ -153,7 +153,7 @@
             android:id="@+id/entry_comment_label"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
-            android:text="@string/entry_user_name"
+            android:text="@string/entry_comment"
             style="@style/EntryFieldHeader" />
 		<!-- Comment -->
 		<RelativeLayout