0.6.3 Release.

Finally both Mac and Windows versions have the same features again.

Changelog:

• Added minigun (yes, demo users can try it too)
• Fixed spiral stairs in the lighthouse
• Fixed framerate drops when spawning reinforcements
• Fixed incorrect LNP member pathfinding
• Increased player's HP from 300 to 900
• NPCs can now speak again
• Changed some guns' recoil values and damage output
• General performance improvements
• Civilians will no longer see door hacking as suspicious
• Enemies will now detect sniper positions with worse accuracy
• Can no longer take Training level target's clothing