Please don't deprecate Haskell 98 modules.

[Henning Thielemann]

John Lato schrieb:
>
>> Encouraging people to use bleeding edge APIs just contributes to the
>> already dicey problem of writing future and backwards compatible code in
>> Haskell, in fact, writing to haskell 98 is the _only_ option at the
>> moment with any ability to do so.
>>     
>
> I was originally in favor of deprecating haskell98 but didn't care
> enough to voice an opinion.  John's argument has convinced me
> otherwise, so +1 to keeping haskell98.
>   
This would be compatible with the method "warn about packages that 
depend on both haskell98 and base".