Fork to include found_rows on $this->get()

Fork and edit to include functionality to return total number of matched rows regardless of any limit imposed on the SQL query using SQL_CALC_FOUND_ROWS.

Example:
$users = $db->get('users', 10, array('userId'), true);
$totalUsers = $db->getFoundRows();

I'm new to OO PHP & GitHub but I hope that I have fork'd & pull'd correctly; welcome any comments.