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

8027696: Incorrect copyright header in the tests
Reviewed-by: alanb, malenkov, mullan

7026275: TEST_BUG: test/javax/sound/sampled/Clip/ClipSetPos.java throws uncatched IllegalArgumentException
Reviewed-by: dav

6801206: SoundTestSuite: test050 fails
Reviewed-by: stayer