Updated the map to v1b.

• Mansion has been improved quite a bit.
  
• There are more pickups and a few have been moved around to more visible areas.
  
• Corridors/doorways have been widened so the mansion feels a teensy bit less claustrophobic.
  
• Primarily did all this because people appear to be deterred from entering the mansion at all in recent sessions, or at the very least, most of its rooms -- which is kinda what I wanted to avoid...

• More lighting has been added in a few places around the map.
  
• In particular/of importance, I added some lighting to doorways or 'transitional' areas to make them a bit more obvious.

• You can now get back inside the mansion from the underground by taking a few block platforms up to where the RED ROOM is.

• You no longer have to jump up the steps to the giant hole where the boss spawns, thanks to some clip brushes.

• The water's finally low enough that you don't just cling to the ground. Good for rocket jumpers (and just about everyone else), probably??
  
• I kept it this way to be more faithful to the original map, however given the changes I've made, this feels kinda pointless now...
  
• I've removed/adjusted some of the bricks to compensate, so that way you aren't stuck at one of the ends trying to jump out (and just to make it easier to get out in general).

Updated the map to v1a based on feedback.

• The big hole at the top of the mountaintop should be able to be Brave Jumped out of now without needing to do weird jank. Tested it on a few bosses that do have a Brave Jump and it should be fine -- if need be I can lower it further.
  
• Voice/scream trigger for falling down the secret hole's been flattened and moved down further, so that, hopefully, if you *do* fall down it, you are guaranteed to only scream when you're actually gonna fall and not just quickly hopping out.
  
• The control point has been moved underground. To account for this, I've added some platforms and made it a bit easier to get in through the watery side. That way, you don't have to swim that whole way to get to the backside entrance.
  
• The ladder upstairs should be working now. I know it might seem like it wasn't intended to but it was. Oops.
  
• You can now slide on the slide! Hopefully. I dunno if i set it up right but i tried my best.
  
• Fixed a random transparent triangle in hale's spawn that definitely shouldn't be there (caused by a func_detail I didn't setup properly and will fix later).