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

6943119: Rebrand source copyright notices
Reviewed-by: darcy, weijun

6702956: OpenJDK: replace encumbered code (software synthesizer)
6717691: Update Gervill with post 1.0 fixes
6740210: Update Gervill with more post 1.0 fixes
6748247: Further update Gervill with still more post 1.0 fixes
6748251: Apply IcedTea midi sound patch
6758986: Gervill: Turn SoftJitterCorrector, SoftAudioPusher threads into a daemon threads
Reviewed-by: ohair, darcy