Started database connection
Started database connection
Added DatabaseConnectionTest.java
Added DatabaseConnection
Added Database queries test
Updated Database queries test
Added Database queries
Update DatabaseConnection.java
Update database queries, datbase connection, and database queries test
Added retrospective meeting 21-05, updated rectrospective meeting 07-05
Merge branch 'database' of https://github.com/utwente-di/di15 into database
Merge branch 'database'
Merge branch 'master' of https://github.com/utwente-di/di15