0.5.2

- added aimer cursor for turrets
- added trajectory prediction cursor for turrets, guns, rockets
- added aim assistance (gravity, velocity compensation)
- added Guard Mode to Weapon Manager
- added incoming missile warning
- added a new KSPField to configure the width of tracers
- added turbulence effect to flares
- increased vulcan turret pitch range
- changed Weapon Manger "cycle" button to "previous" and "next" buttons
- changed tracer shader to Alpha Blended
- changed: explosion and bullets destroy parts by instantly overheating
instead of explode()
- missile turn rate and aerodynamic stability now scale with atmospheric
density
- rocket aerodynamic stability now scales with atmospheric density
- integrated guns/turrets to Weapon Manager
- switched bomb aimer to new trajectory prediction system
- missiles that acquire flares will track them instead of disabling
guidance
- fixes to Weapon Manager trigger behavior
- fixed launch clamp issue! (extended floating origin threshold)
- fixed bullet drop for different planets' gravities
- fixed floating origin shift on flares and rockets (not perfect yet)