cleaning
Merge pull request #2 from ridhwaans/master

pull dude
Merge pull request #4 from ridhwaans/master

pull dude
updated refund and buy test cases
Merge pull request #2 from ridhwaans/master

fixed mistakes
Merge remote-tracking branch 'bryce/master' into merging
Merge remote-tracking branch 'wes/master' into merging