Patch 0.9.2 - Major graphics update, new conquest-style maps, and official Linux support

Graphics

• Created all new planets and moons
• Re-textured and created new materials for all asteroids
• Removed fog from all missions (much clearer skybox)
• Shadows are no longer entirely black
• Created all new explosion-debris with more visual variety
• Expanded skybox size by 625% (by volume) in all levels

Gameplay

• Added new conquest-style gameplay mode
• Expanded the boundaries of most levels
• Replaced "Boreas Recon" level with new conquest-style mission "Overreach"
• Changed format of mission "Dante Guerrillas" entirely
• Overhauled "Hammurabi Encounter" mission
• Raised topspeed for most fighters by 50%
• Rebalanced all projectile-damage
• Selecting nearest enemy now only selects damageable enemies
• Frigate doors now block debris, gibs, and LOS-checks
• Created new freighter and added to "Dante Guerrillas"
• Created new machine-gun turrets for new freighter

AI

• AI is now capable of prioritizing and taking territories
• AI now chooses weapons based on damage-threshold of target
• Turrets now have even targeting-priority (compared to fighters)
• AI is now more likely to gang up on targets
• Fixed issue with AI not obeying level-bounds
• Fixed issue with AI accelerating faster than its engine-limits (in some cases)

Audio

• Music now changes dynamically in most levels
• Playlists are now supported and used in most levels
• Lowered missile-turret muzzle-volume

UI

• Updated all mission-splashes to reflect major visual changes (in mission-menu)
• Implemented territory-markers with radial progress-bar
• Added territory-objectives to navball (lower left)

Bugs

• Turned off debris-shadows in some levels
• Fixed issue with lasers not registering kills/damage on turrets
• Windowed-setting is now properly saved
• Projectile-impacts are no longer attached to debris

Core

• Vehicles can now be invulnerable to some weapons and not to others
• Game-state is now kept in a proper game-state object
• Implemented beam super-weapons (not currently used)
• Asteroids now inherit static-props