Update changes.md
Version 2.0.4
Merge pull request #89 from GrahamCampbell/patch-1

Updated Change Log
Update changes.md
Fix non object error when invoice id is not valid
Fixed hasDiscount when 100% discount applied
Add extra blank line between test method
Update composer.json
Fixing migration command path
Fixed the minimum stability
Merge pull request #120 from GrahamCampbell/patch-2

Fixed the minimum stability
Merge pull request #118 from adamgoose/master

Fixing migration command path
Merge pull request #117 from robbiepaul/master

Fixed hasDiscount when 100% discount applied
Merge branch '2.0'
Don't require last 4.
Merge branch '2.0'
Merge pull request #112 from jfrabaute/fix

Fix non object error when invoice id is not valid
Fix bug on master branch.
Merge branch 'master' of github.com:laravel/cashier

Conflicts:
	src/Laravel/Cashier/BillableTrait.php
Update .travis.yml