<p>Student leaders at Boston University delivered a 50-page manifesto to President Jon Westling yesterday on the most pressing issue of the spring semester: Having their friends stay over until 8 a.m.</p>
<p>Since last fall, student unrest has been building over BU's dorm policies, among the most restrictive in Boston. Students are allowed guests only with permission - and only until 1 a.m. most nights, and 2:30 a.m. on weekends.</p>