Move docs and media files into subfolders of the app

and have the app load stuff from the right locations.
The .wav files are now found also when the app was started via
double-click. The playback still doesn't work though, see #51.

src/GridView.cpp

@@ -1,13 +1,16 @@
-#include <Roster.h>
 #include <Alert.h>
+#include <Entry.h>
+#include <Roster.h>
+#include <MenuBar.h>
+#include <MenuItem.h>
+#include <Path.h>
 #include <String.h>
 #include <TranslationUtils.h>
 #include <TranslatorFormats.h>
-#include <MenuItem.h>
-#include <MenuBar.h>
+
 #include <stdio.h>
 #include <stdlib.h>
-#include <Entry.h>
+
 #include "AboutWindow.h"
 #include "GridView.h"
 #include "Preferences.h"
@@ -50,7 +53,17 @@ LoadSoundFile(BFileGameSound*& sound, const char* file)
 	if (sound != NULL)
 		return;
 
-	sound = new BFileGameSound(file, false);
+	app_info info;
+	BPath path;
+	be_roster->GetAppInfo("application/x-vnd.wgp-LightsOff", &info);
+	BEntry entry(&info.ref);
+
+	entry.GetPath(&path);
+	path.GetParent(&path);
+	path.Append("media");
+	path.Append(file);
+
+	sound = new BFileGameSound(path.Path(), false);
 
 	if (sound->InitCheck() == B_OK) {
 		sound->Preload();
@@ -233,10 +246,18 @@ void GridView::MessageReceived(BMessage *msg)
 	{
 		case M_SHOW_MANUAL:
 		{
+			app_info info;
+			BPath path;
+			be_roster->GetActiveAppInfo(&info);
+			BEntry entry(&info.ref);
+
+			entry.GetPath(&path);
+			path.GetParent(&path);
+			path.Append("docs/GettingStarted.html");
+
+			entry = path.Path();
 			entry_ref ref;
-			BEntry entry("GettingStarted.htm");
 			entry.GetRef(&ref);
-
 			be_roster->Launch(&ref);
 			break;
 		}