change keybinding for changing browse mode

I shouldn't do that, but the old one will be much better for
choosing whether songs in browser have to be sorted by names
or modification date. Besides, binding this to browser key
makes browser behaviour more "compatible" with media library.

src/browser.cpp

@@ -72,7 +72,12 @@ void Browser::Resize()
 void Browser::SwitchTo()
 {
 	if (myScreen == this)
+	{
+#		ifndef WIN32
+		myBrowser->ChangeBrowseMode();
+#		endif // !WIN32
 		return;
+	}
 	
 	if (!isInitialized)
 		Init();

src/help.cpp

@@ -229,7 +229,7 @@ void Help::GetKeybindings()
 	*w << DisplayKeys(Key.EditTags)			<< "Rename playlist/directory\n";
 #	endif // HAVE_TAGLIB_H
 	if (Mpd.GetHostname()[0] == '/') // are we connected to unix socket?
-		*w << DisplayKeys(Key.SwitchTagTypeList)<< "Browse MPD database/local filesystem\n";
+		*w << DisplayKeys(Key.Browser)		<< "Browse MPD database/local filesystem\n";
 	*w << DisplayKeys(Key.GoToNowPlaying)		<< "Locate currently playing song\n";
 	*w << DisplayKeys(Key.GoToParentDir)		<< "Go to parent directory\n";
 	*w << DisplayKeys(Key.Delete)			<< "Delete playlist/file/directory\n";

src/ncmpcpp.cpp

@@ -1808,12 +1808,6 @@ int main(int argc, char *argv[])
 				if (number && Mpd.AddRandomSongs(number))
 					ShowMessage("%zu random song%s added to playlist!", number, number == 1 ? "" : "s");
 			}
-#			ifndef WIN32
-			else if (myScreen == myBrowser)
-			{
-				myBrowser->ChangeBrowseMode();
-			}
-#			endif // !WIN32
 			else if (myScreen->ActiveWindow() == myLibrary->Artists
 			||	 (myLibrary->Columns() == 2 && myScreen->ActiveWindow() == myLibrary->Albums))
 			{