[development] creating forward compatable modules?

[Moshe Weitzman]

> The main limiting number with the old drupal.org server was the number 
> of concurrent, active registered users. Other factors were the fact that 
> due to a lot of content being added the caching was less effective than 
> we thought (has been worked on) and that MySQL used quite a lot of 
> memory (we only had 1G).

also it was getting slammed by misbehaving web crawlers. if we had an 
automatic ban module, it might have extended the life of that server.