OpenBVE v1.7.1.6

Significant Changes:

• New: Add various alternate compatibility signal sets.
• Change: Improve lighting behaviour in the GL3.0 renderer.
• Change: Update pt-PT language file.
• Change: Update id-ID language file.
• Fix: Issue when passing section aspects to plugins.
• Fix: Make the AI behave better when driving a train with door interlocks.
• Fix: The pass alarm event location was incorrect when using a non-standard block length.