added update method for subscription
added update section in README.md
Merge pull request #9 from railsmechanic/master

Added update method for subscription
Remove Jeweller
Add test for subscrition updating
Update README
Add order searching
Fix gemspec
Ignore the gems that get generated on build
Remove gem
Updated bundle
Corrected Gemfile
Removed specs that were commented out
Synced with patchfx's upstream branch. Fixed RSpec on version 2.4. Unfortunately the tests fail. No idea why at this point. Therfore I was not able to add meaningful tests for the additional options that can now be passed to get the prices for a specific source and/or coupon.