[Cin] Valgrind

To thank GG, I offer a Valgrind made with the new release, with the modifiability of the audio track height. PS1: I also tried to run CinGG with gdb (# gdb ./cin) but it opens the gdb shell waiting for commands and does not start CinGG. How to do it? PS2: I also take this opportunity to thank Sergio for the optimizations and improvements he makes to the manual.