Updated to use AerOmar mesh; Added nebula1 skybox; removed planed code
Added SpaceDust particle effect;
Added ParticleFX to used ogre plugins;
Removed plugins.cfg from cmake;
Updated submodule commit;
Implemented basic SpaceDust component and updated main to use it;
Moved source files to src/shipsbattle to maintain proper include
directories;
Updated submodule commit;
Closes #1.