classes instead of Video.

- removed 0 CR characters
 - removed 75 trailing whitespaces
 - replaced 0 tabs with spaces

to get M_PI from the platform headers and cast it to float.

to show how it can be used.

in the scene where we can push and pop cameras.

on automake platforms, too.

shitload of warnings Bullet spits at us.

compilation time for very little benefit and maybe even confusion.

that 2-year old "temporary Win32 hack".

currently works for images (SDL and GDI+ loaders) and sound samples.

Useage : "...[.... csg*]" equals "current mesh -CSG- the mesh in the braces".
Keywords :  CsgUnion<csgu>, CsgSubstract<csgs>, CsgAnd<csga>, CsgXor<csgx>
TODO : cleanup useless code.
TODO : Some bugs are still present, some face that disappear should not.
TODO : Correct epsilon useage (see geometry files).
TODO : Coplanar face are not handled -at all-.
TODO : Vertex count goes through the roof in case of a Xor.