Days after California’s public universities handed lucrative new pay and bonuses to three executives and a chancellor while raising student tuition, a state senator has introduced a bill to make such pay increases illegal in tough economic times, reports the San Francisco Chronicle. The bill, filed Monday by state Sen. Leland Yee, D-San Francisco, would prohibit executive pay increases at the University of California and California State University in years when the state does not raise its allocation to the schools…