[development] need a standard for contrib node build_mode constants

[Jeff Eaton]

On May 21, 2009, at 11:50 AM, Chris Johnson wrote:

> After all, we wouldn't want developers to have actually document
> anything they write.  ;-)

Well... documentation is needed in either case. But with ints,  
collisions are absolutely inevitable. I ran into this with VotingAPI  
early on -- I had a const for 'vote_type', and it had 3 values out of  
the box. Pretty quickly, two other modules both defined fourth value  
types. suddenly, those modules couldn't co-exist with each other.

There's nothing in *my* documentation that could have solved that,  
other than a pointer to a wiki page where everyone claimed ints.