- implemented Handler to provide methods for entities
- added /testfiles to gitignore
- corrected typo in de.dhbw.humbuch.model.entity.Student
 -> setProfil[e]
 -> getProfil[e]
- created pdfExport-package
- implemented classes to generate PDFs
	-> StudentPDF
	-> ClassPDF
	-> OrderlistPDF
		-> save
		-> print
- implemented CSVHandler
 -> read csv and create student objects
 
 - implemented tests
- added gradle dependency: csvreader
- added gradle dependency: iText
- fixed relative path in CSVTest
- added res/pictures
Merge pull request #23 from B3nRa/importAndExport

Import and export