Support for running the testsuite in command line programs for continuous integration.

Here is a small example inspired from SDLmain.c:

g_launcher = new JGameLauncher();
InitGame();
MTGCollection()->loadFolder("sets/primitives/");
MTGCollection()->loadFolder("sets/", "_cards.dat");
options.reloadProfile();
TestSuite testSuite("test/_tests.txt");
int result = testSuite.run();
DestroyGame();
delete g_launcher;
return result;

projects/mtg/src/GameApp.cpp

@@ -164,7 +164,7 @@ void GameApp::Create()
     HasMusic = jfs->FileExists(WResourceManager::Instance()->musicFile("Track0.mp3")) && jfs->FileExists(WResourceManager::Instance()->musicFile("Track1.mp3"));
     
     LOG("Init Collection");
-    MTGAllCards::loadInstance();
+    MTGAllCards::getInstance();
 
     LOG("Loading rules");
     Rules::loadAllRules();