Orchestre-JS 2.1.0: Some fixes and new logo

After 3 years, here is an update for Orchestre-JS! Not a large one. This is mostly a fix to handle better loops with exit cues (like reverb or outro parts). It was also the occasion to improve its presentation, with a proper logo and a slightly better documentation. I still consider it as a solid tool for managing music in web games. So if you want to make musical creations for the web, give it a try!

Added

• Option keep for stop, toggle and schedule that allows to stop a loop but keep playing the track entirely one last time

Changed

• When looping, the track doesn't get interrupted, but instead gets played on top of the new loop, allowing for outro and smoother transitions