StarMade 0.09263: more fixes

[schema]

Hi,
I'm currently working hard on the galaxy map.
This is a intermediate version with bug fixes I'm doing alongside.

- fixed NullPointer on start with corrupted config
- fixed drawing of active thrusters
- improved info/error messaging to be more new-player friendly
- added line from selected block in build mode to indicate what is going to be connected
- fixed crash when using jamming or cloaking when the ship has not fully loaded (on client)
- fixed crash when beams are drawing and a beam structure change is invoked
- fixed muzzle flash position for custom output on weapons
- fixed StackOverflowError when deselecting text
- added better check for disconnected clients
- added better information on client disconnect
- fixed nullpointer in weapon GUI panel when empty element is selected

Thanks for playing StarMade,
- schema