change variable name
bugfix #3
set widow size after minimize
delete some printline's
invalid fix #4
informator start
add information function

show sell and shipment of selected product
fix invalid comment
delete some println
set modality type
set display center
update app version
start of adding new function
add new functionality
improve some
start improving information function
improve information function
change date format in information function
invalid fix #5
delete comp. warn.