raindrop 0.250

• Add partial SSC support
  • Add Warps support
  • Add Scolls support
• Export SV changes to osu!mania and background music events.
• NPS graph generator.
• Stepmania and BMS charts do not use forced release holds by default any more. (Keybeat style)
• Audio bugfixes.
• Main menu doesn't go black any more when going back to it.
• O2Jam GOODs don't suck health any more (oops)
• Fix GROOVE bar not failing on BMS/SM charts.