Merge pull request #1 from ronnelg10/master

Clean up code of config
Create README.md
Bug fix for discount value in print Request (excel)

Fixed bug for discount computation during generating excel in
lab/request/view
Prevent cancelling Request with no Sample Codes

[F]ix to [B]ug: The system will not prevent cancelling Requests without
generated Sample Codes.
Fixed Lab dropdown showing only one Lab

Fixed Lab dropdown showing only one Lab in testcategory form create
Merge pull request #2 from dost-onelab/master

Pull Request