now looks for rates from all carriers when preferred packaging returns none
added some helpful log lines and charge the user for international shipping
reverted to old way of doing things to preserve international shipping preferences & bumped gem version
now if easypost returns no rates spree rates will be used
helpful error message when we do not use easypost
added lots of explanatory comments
legibility improvements
fixed value calculation
Merge pull request #1 from leggers/master

Master