alaashafaee/Coolsoft-14 — pull request #305 by ahmed93 (2014-04-22 10:14:19+00:00)
Title: Iusses #304 & #289 and adding type to paramter constarints

@ahmedhagii @AhmedElassuty

- adding uncompleted to attempt
- adding types to parameter constraints
- adding return to method constraints
- adding relation between method constraints and parameter constraints
- adding table Acknowledgement with course id and student id and message