8039915: Wrong NumberFormat.format() HALF_UP rounding when last digit exactly at rounding position greater than 5
Summary: Fixes erroneous rounding in DigitList for corner cases uncovered previously. Adds dedicated unit tests to TieRoundingTest
Reviewed-by: bpb, darcy
Contributed-by: Olivier Lagneau <olivier.lagneau@oracle.com>

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

7131459: [Fmt-De] DecimalFormat produces wrong format() results when close to a tie
Reviewed-by: darcy
Contributed-by: olivier.lagneau@oracle.com