OpenBVE v1.11.2.1

This build primarily contains small fixes, but should be noted as containing one potentially breaking change to the RouteLimit animated instruction, in the edge-case where no limit is set.

Significant Changes:

• New: Add particle system to XML trains.
• New: Implement DeclData template in the NewXParser
• New: Add RailAnnounce and RailAnnounceAll commands.
• Change: Use the new block parser in a couple more places.
• Change: Force close viewer windows under Mono to stop hanging processes.
• Change: Remove the use Prism.Mvmm library, by cloning the class we use- The current version is no longer MIT licenced.
• Change: Improve the handling of visibility update locks on reload in Route Viewer.
• Change: Use lower object optimisation threshold for the BVE5 Seoul Metro route.
• Change: Combine marker drawing routines into the common renderer.
• Fix: IgnoreW should be true for root matrix transforms in AssimpXParser.
• Fix: Potential SanYingInput crash on joysticks with more buttons than axis.
• Fix: Correct some erroneous error text in the CSV / RW route parser.
• Fix: Remove a couple of spurious errors generated by the new block parser.
• Fix: Directly creating a texture with an invalid path could crash.
• Fix: Correct blending of object based backgrounds using partial transparency.