fixed typo in persistence.xml (automatic reattaching of entities)
Merge pull request #220 from davherrmann/issue#209

fixed typo in persistence.xml (automatic reattaching of entities)
Implemented PDFDunning.
 -added second dunning's text in which parents are addressed.
 Implemented test for PDFDunning.
added grade suffix information to PDFStudentlist and PDFDunning.
Merge pull request #223 from B3nRa/issue#186

Implemented PDFDunning.
Entity Konstruktoren als "deprecated" markiert. Verweis auf Builder
Merge pull request #226 from davvitt/issue#225-EntityKonstruktoren

Entity Konstruktoren als "deprecated" markiert. Verweis auf Builder
Create objects using builder pattern in PDFTest.
Removed unused imports in CSVTest.
Add comment to PDFTest that explains that it does not contain any JUnit
tests.
Moved code into try block in PDFTest.
Added parent's name to the salutation text.
Changed expected parameters of createSecondDunning.
Adapted new way of createSecondDunning call in PDFTest.
Added parent object to student in PDFTest.
Removed unused import in PDFDunning.
replaced grade.getGrade() + grade.getSuffix by grade.toString() in PDF
classes.
Removed unnecessary comments.
Construction of rootGridLayout now dependent on login status
Added code to test the printing of lendingList and returnList.
Added maps to PDFStudentList to map lendingLists and returnLists to the
correct student.
Adapted PDFTest.