[Dbix-class] Branch status reports please

[Matt S Trout]

Carl Franks wrote:
>> columns_info_for
>>    - Carl Franks?
>>    - don't think this has been worked on much yet?
> 
> This won't be making it in.
> As far as I remember, its mysql support is complete.
> No support for other backends yet though.

If it (a) works, (b) is an improvement on what's in -current, why not 
merge back what you've got so far assuming it doesn't break compat for 
anything?