[ODE] ODE and the STL

[erwin@erwincoumans.com]

Unfortunately some STL implementations have issues dealing with storing 
aligned data (for example SIMD aligned vectors on 16-byte boundaries). 

Just writing your custom allocator is not enough: current MSVC 2005 STL 
implementation still has issues with this. (just google for it). 

I'm moving away from STL in the Bullet library by using a few replacements 
(interface is a subset of the STL interface).
Erwin