creating module ids

[Brian Pontarelli]

>>
>> Constructors bad. Factories better.
>>
>> -bp
>>
> Factories ok; parsing from strings every time: bad.

Not really. Savant parses version numbers from Strings and it really  
isn't bad at all. And it could easily be faster, but there's really no  
need for that given that it works and parsing 100-200 Strings is  
almost completely negligible.  Mostly the overhead is downloading and  
possibly meta-data extraction, not really String parsing.

-bp