Fix "minor" issues

Fix "minor" issues

Fix off by one error caused by using the whole terminal height instead
of the height used by the table (without the header).
Add missing initialization.
Fix terminal position indexing as it is 1 based (not 0 based).
Handle newline after printing entry separately in the loop mode as when
	the entry at the very bottom of the terminal emits newline the
	whole output shifts (erasing header).