Summary: Fixes wakeup mechanism of LinuxWatchService and introduces a test
Reviewed-by: alanb

Reviewed-by: chegar

8042470: (fs) Path.register doesn't throw IllegalArgumentException if multiple OVERFLOW events are specified
Reviewed-by: alanb, chegar

Reviewed-by: alanb

Summary: updated files with 2011, 2012 and 2013 years according to the file's last updated date
Reviewed-by: tbell, lancea, chegar

Reviewed-by: alanb
Contributed-by: yiming.wang@oracle.com

Reviewed-by: alanb
Contributed-by: yiming.wang@oracle.com

Reviewed-by: chegar, ksrini

7191467: (fs) WatchService periodically fails to queue ENTRY_DELETE event for short lived file [sol11]
Reviewed-by: chegar

7164570: (fs) WatchService queues CREATE event but not DELETE event for very short lived files [sol11]
Reviewed-by: chegar

Reviewed-by: chegar

7142847: TEST_BUG: java/nio/file/WatchService/SensitivityModifier.java has incorrect @run tag, runs Basic
Reviewed-by: chegar

Reviewed-by: forax, chegar

Reviewed-by: dholmes

Reviewed-by: sherman

Reviewed-by: chegar, sherman

Reviewed-by: darcy, weijun

Reviewed-by: chegar

Reviewed-by: alanb
Contributed-by: sebastian.sickelmann@gmx.de

Reviewed-by: chegar

6844313: New I/O: File timestamps should be represented by a FileTime rather than a long+TimeUnit
Reviewed-by: sherman

4313887: New I/O: Improved filesystem interface
4607272: New I/O: Support asynchronous I/O
Reviewed-by: sherman, chegar