Update

Changes:
1. new function "BinWriter::WriteSlots" used for setting the number of
slots and setting the filepath
2. added call of "WriteSlots" in mainwindow.cpp for opening the file
with actual date and time at relative path
3. changed createpaths path to a relative path in same directory
Update

Changes: Bugfixes in filestream.cpp
Merge branch 'carsten' into jochen
Fixed Merge commit

overseen changes corrected