Allow attribute/value spanning

[psic4t]

Allow optional attribute/value spanning to store values larger than 1024 bytes.

[rjrodger]

Hi - could you explain this a little more thanks - not sure which simpledb feature this refers to? thanks!

[aarong]

The idea is that the module could transparently split large values into chunks before writing and then recombine them after reading to get around SimpleDb's 1024 byte limit on attributes.

This is an important feature, but in my humble opinion it doesn't belong in the SimpleDb module, but rather in a higher level module that makes use of SimpleDb module. I am working on just such a thing...

[rjrodger]

mdebus adding you as a contrib, see https://github.com/rvagg/node-levelup/blob/master/CONTRIBUTING.md