Ashpan a2b

- Removed the ability to build in select spots of BLU spawn.
- Fixed odd shadows caused by signs in BLU's forward spawn.

- Improved lighting
- Fixed point_tesla's sparking sound not actually existing in the game files (oops)
- FINALLY fixed the weird lighting under the ramps past the BLU spawn arena.
- Added new screenshots and a thumbnail to the TF2Maps page.

- Improved final point
- Added more cubemaps
- Moved BLU forward spawn backwards. It is now behind the train.
- Previously, the main room leading to A from BLU spawn was near impossible for BLU to push into if a sentry was placed there. To make it easier to push into if this were to happen, a flank and new way to A and the room has been added, and the size of nearby ammo/health kits has been reduced.
- Speed of sewer door at BLU spawn has been significantly increased.
- The roof of the shack next to BLU spawn can now be reached more easily.

- Fixed missing soundscape in Red spawnroom
- Fixed point_tesla's not being turned on.