[sm130attacks -> sm130futures] Bringing it in.

Help will be needed to make Song Attacks work by default.

Yes, that means I want no activated attacks to mean DQ.

src/Song.cpp

@@ -41,7 +41,7 @@
  * @brief The internal version of the cache for StepMania.
  *
  * Increment this value to invalidate the current cache. */
-const int FILE_CACHE_VERSION = 171;
+const int FILE_CACHE_VERSION = 170;
 
 /** @brief How long does a song sample last by default? */
 const float DEFAULT_MUSIC_SAMPLE_LENGTH = 12.f;