8023217: Additional floorDiv/floorMod/multiplyExact methods for java.lang.Math
Summary: Add new methods with long, int signatures.
Reviewed-by: darcy, scolebourne

8029235: Update copyright year to match last edit in jdk8 jdk repository for 2013
Summary: updated files with 2011, 2012 and 2013 years according to the file's last updated date
Reviewed-by: tbell, lancea, chegar

8022109: Evaluate adding incrementExact, decrementExact, negateExact to java.lang.Math
Summary: Add the methods for parameter types int and long.
Reviewed-by: mduigou
Contributed-by: Brian Burkhalter <brian.burkhalter@oracle.com>

6708398: Support integer overflow
Summary: Added add/sub/multiply/toIntExact methods to j.l.Math and StrictMath classes
Reviewed-by: emcmanus
Contributed-by: roger.riggs@oracle.com