Fixed bug in floor entity, that was not accounting for the arena center when creating the OpenGL texture from the loop functions.
Fixed the destroy logic of the LED entity.
Before this change, LED entities were not always removed from the medium that was managing them.
Fixed XML documentation for the box and cylinder entities.
Merge branch 'master' of https://github.com/ilpincy/argos3
Merge branch 'master' into eyebot