Fix reading pre-split timing ssc files.

Welcome to the first cache of the next series.
Start placing your bets again on what the final
cache value will be for SM5 final.

As a reminder, we are on cache version 202 now.

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 = 201;
+const int FILE_CACHE_VERSION = 202;
 
 /** @brief How long does a song sample last by default? */
 const float DEFAULT_MUSIC_SAMPLE_LENGTH = 12.f;