Add configuration for aws-sdk-js (the official SDK for Node.js)
remove space
ignore debug scripts
limit batch_get response size to 1mb
default to projected attributes when using an index
LastEvaluatedKey when item processed exceeds 1mb
parallel scan

fixes #19
refactor number into a seperate type
allow higher precision numbers

see #20
add ruby 2.0 to the travis list
jruby returns different hash for x and x.0
don't recalculate the size of item on every change

see #21