A3DGE Code

* Finished to implement the game state subsystem.
* Documentation fixes and updates, adding how's the expected game flow.

+ Added time control to application object.
+ ShowErrorMessage is able to print the message in Display if available.
* Fixed some documentation.

+ Added unit a3dge.Classes and moved the exception class in to it.
+ Added a State implementation simpler than the old one (see "branches/pre-2.0")
and extended in to a Game State Subsystem.

+ Added display.

+ Added configuration file and command line parsing.

+ Added Log object.
+ Added Exception management.
- Removed property "svn:executiable" from some source files.

* Removed pasdoc option --staronly.
* Renamed all engine units adding the "a3dge" namespace.

+ Added build scripts, a test program and created a dummy a3dge unit to test
it all.
* Updated coding style.

* Moved "trunk" in to "branches", as new version 1.0 will be a direct port of
the Momen 3D game.

* Component constructor is'nt virtual now.
+ Added normals to polyhedron models.
* Polyhedron models can use material library reference now.
* A few cosmetic changes.