open address book works, address count works
opening abook in own method
no output directory anymore
file name pattern complete
pattern computation in own method
filename stays unchanged if only one file is expected to be written
implemented own address book and address in order to access all fields
switch to jmork implementation by ibauersachs
error free after class deletion
removes unused libraries
removed first double entries with comparator
home address
work address
birthday
categories
unified line formatting
email
formatted name
structured name
nickname
organization, bugfixing