[GSoC]use hash/map in POSIX key and Classic notepad

[Chris Johns]

On 2/04/12 4:21 AM, Joel Sherrill wrote:
>  From phone. I don't know how using rbtree would impact memory allocation in the sense of when allocations occur but since if the tree stays balanced, that may be a viable implementation.
>
> Or a hash... I know the problem and don't claim to know the perfect solution. :)
>

Maybe this is something the project could focus on. Looking at both and 
seeing how they stack up against each other.

Chris