Update 0.21 : new environment & 7 new skills for grade 4

FEATURES : * A new environment : Dawn of Shards * 7 New Skills unlocked at difficulty grade 4! - Reflex Bubble (Bubble Skills) - Missile Barrage (Weapon Skills) - Gun Jammer (Slow Skills) - Vortex Ring (Ring Skills) - Frag Mine (Mine Skills) - Harpoon (Spear Skills) - Proximity Fusion (Close Range Skills)

IMPROVEMENTS : * Hovering the cursor over a locked skill will tell you which difficulty rank you have to reach first * Blueprints are now automatically ordered by level

BALANCE : * Ship classes have a now huge difference of weapon damage bonus per navigation point: - Sentinels have still 0.25% of additional damage / NAV point - Marauders now have 0.35% of additional damage / NAV point - Interceptor now have 0.5% of additional damage / NAV point Now more than ever, Interceptors are the biggest damage dealers of the game.

BUGS : * Fixed a bug where the setting menu would cause an exception blocking the application * Fixed a bug with the sound manager causing sound fades to have improper durations