Test mock interface ProfessorLoader
Test to load professor from database passed
Show ProfessorInfo in frame
Refactor presenters for Subject and SubjectList
Replaced Statement with PreparedStatement in database classes
Remove unnecessary methods
Create ProfessorPanel to place ProfessorInfo and Input. Load professor when length of input is 8 (length of dni)
Moved UI test from ProfessorSignatureApplication (in source packages) to ProfessorSignatureApplicationTest (in test packages)
Show list of subjects in Application test
Extracted class to represent application frame
Refactor tests. Create class FakeSubjectList to not repeat the creation of a fake ArrayList<Subject>
Created skeleton of DatabaseSignedSubjectsSaver