Erwan

- Added a possibility to put a file "Res.txt" instead of the folder "Res". The file Res.txt is a simple 1 line text file, telling where to find the Res folder, terminated by "/". For example: "../../wagic_res".
This addresses issue 428 . This could also help us in the future, to develop mods.

projects/mtg/src/Credits.cpp

@@ -255,7 +255,7 @@ int Credits::isDifficultyUnlocked(){
     found = 0;
     char buffer[512];
     char aiSmallDeckName[512];
-    sprintf(buffer, RESPATH"/ai/baka/deck%i.txt",nbAIDecks+1);
+    sprintf(buffer, JGE_GET_RES("ai/baka/deck%i.txt").c_str(),nbAIDecks+1);
     if(fileExists(buffer)){
       found = 1;
       nbAIDecks++;