Removed trailing spaces

Signed-off-by: Jan Pecha <janpecha@email.cz>
Composer: updated Nette\Tester

Signed-off-by: Jan Pecha <janpecha@email.cz>
Added new method getNearestOneFor()
readme: remove indent

Signed-off-by: Jan Pecha <janpecha@email.cz>
readme: added getNearestOneFor()