Added the rest of entities. Added exception file for courseNotFound exception. Modified the interface for adding a course. Added the code for adding a course. 

Could not test the addCourse method -> needs revision (might be buggy)
Added the rest of entities. Added exception file for courseNotFound exception. Modified the interface for adding a course. Added the code for adding a course. 

Could not test the addCourse method -> needs revision (might be buggy)

Programmer : Raul
Added the rest of entities. Added exception file for courseNotFound exception. Modified the interface for adding a course. Added the code for adding a course. 

Could not test the addCourse method -> needs revision (might be buggy)

Commited again because git does not recognize my username

Programmer : Raul
Added the rest of entities. Added exception file for courseNotFound exception. Modified the interface for adding a course. Added the code for adding a course. 

Could not test the addCourse method -> needs revision (might be buggy)

Commited again because git does not recognize my username

Programmer : Raul
Added the rest of entities. Added exception file for courseNotFound exception. Modified the interface for adding a course. Added the code for adding a course. 

Could not test the addCourse method -> needs revision (might be buggy)

Commited again because git does not recognize my username

Programmer : Raul
Delete BusinessAcademy , ClassRomm and timeblocks to fix the addcourse
Fixed addCourse and addRole methods in serverfacadeDb
Programmers: Tobias and Raul
Merge branch 'oldVersionBugged' into dto

Conflicts:
	src/META-INF/persistence.xml
	src/entity/Teacher.java