Java 8 RFR 8022180: BigInteger Burnikel-Ziegler quotient and remainder calculation assumes quotient parameter is zero

[Brian Burkhalter]

Please review at your convenience:

Issue   http://bugs.sun.com/view_bug.do?bug_id=8022180
Webrev  http://cr.openjdk.java.net/~bpb/8022180/

The update is to clear the quotient if the divisor is larger than the dividend 
in divideAndRemainderBurnikelZiegler().

Thanks,

Brian