First proposal for editing DateTimePicker values#29

wolframhaussig wants to merge 6 commits into

mainAssorted-Development/winforms-stylable-controls:mainfrom

bug/24-bug-keyboard-control-behavior-of-the-stylabledatetimepicker-controlAssorted-Development/winforms-stylable-controls:bug/24-bug-keyboard-control-behavior-of-the-stylabledatetimepicker-controlCopy head branch name to clipboard