[docs] The missing pieces

[Dan Browning]

> Hello all -
> 
> I have begun the delightful task of restoring the 
> long-missing chunks of 
> documentation, primarily by working through the last version of the 
> Minivend docs and extracting pertinent content which has somehow been 
> omitted from the current doc set.
> 
> The biggest holes I have found so far pertain to ordering, 
> working with 
> carts, pricing techniques via Commonadjust and item 
> modifiers, and the 
> checkout process - there are probably more and I welcome your 
> input.  Since 
> all these are somewhat related and (to my eye) don't seem to 
> fit well in 
> any of the existing files, I am starting a new document, 
> tentatively titled 
> ic_ecommerce, and arranging them within.
> 
> - Ed L.

Sounds great, Ed.  Thanks.

-Dan