Fixed gitignore for differences between 3.7-beta and 3.7-beta-cpp.

.gitignore

@@ -24,6 +24,7 @@ spine-cpp/Debug/*
 
 spine-sfml/Debug/*
 spine-sfml/SFML
+spine-sfml/dependencies
 spine-sfml/c/dependencies
 spine-sfml/cpp/dependencies
 spine-sfml/cmake-build