Added JUnit Jar, Hamcrest Jar and a unit test example into src folder.
Added getProjects into UserDAO.java and getUsers into ProjectDAO.java.
Added a new constructor into model Project.java.
Created unit tests for UserDAO and ProjectDAO.
Removed DbManager.java in UnitTest folder. 
Updated original DbManager.java to make the getConnection() public.
Import DbManager into UserDAOTest.java
Merge pull request #23 from ahajirnis/DB_CLUBUML-87

DB clubuml 87