Removed dep on getprime_r.h
Additional tests
time echo '(1000001000#1000000000+2)/283' | ./ecm -sigma 0:18 1e4
time echo '(100#+1)/2336993' | ./ecm -sigma 0:18 1e3
Edited by Seth Troisi
Additional tests
time echo '(1000001000#1000000000+2)/283' | ./ecm -sigma 0:18 1e4
time echo '(100#+1)/2336993' | ./ecm -sigma 0:18 1e3