Unhaunter v0.2.0 released

Added a new tutorial map and a pixel-perfect shader to make it look sharp and neat.

Features:

• New tutorial for basic movement, doors, light switches and torch.
• Improved Pixel-perfect shader.
• Improved see in the dark view with additional exposure range and bluish tones to convey the sensation of a dark place.
• Added "ambient light" mixing mode for the shader for improved visuals.
• Sanity now slowly increases when outside or when the ghost is very far.
• Added NPC dialogs for use in tutorials.
• Auto-trigger NPC dialogs by proximity.
• New sprites and utilities to be used mainly by tutorials.

Fixes:

• Sort maps by filename in the main menu.
• Prevent van from auto-opening if far away.
• Do not animate player walking while the game is paused.