Update TODO
Add FactoryGirl and shipment factories
Add sanity check on shipment states
Raise exception on ShipmentList#get_by_index invalid index
Add exceptions
Add GPL header to rake file and gemspec
Bump version to 0.0.3
Remove old sdoc files
Add DHL to default shippers
Replace sdoc with shiptrack
Bump to 0.0.4
Hide 'from' in list command if no vendor set
Complete readme with instructions
Bump to 0.0.5