Debugged the collision detection code in cyphesis, sorted out the problem with created entities inheriting bounding boxes from the creator, and made an attempt at handling two moving entities colliding.

Added Structure base class for buildings or other server entities that the player can move into. Modified collision rules so that if an entity collides with a structure bounding box, the entity move into that structure, making it possible to move in and out of buildings.

Started work on a simple library for rendering building blocks using the off screen Mesa GL library.

Loading of terrain info into the client must be separated from loading of entity information, as the two are not that closely related, and the server must be able to get full information about the pre-defined entities in the world, which it currently cannot do from the terrain map format.