8078334: Mark regression tests using randomness
Reviewed-by: xuelei, alanb

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

8013647: JPRT unable to clean-up after tests that leave file trees with loops
Reviewed-by: chegar, tbell

8012930: (fs) Eliminate recursion from FileTreeWalker
Reviewed-by: chegar

7033660: Update copyright year to 2011 on any files changed in 2011
Reviewed-by: dholmes

7006126: (fs) Updates to file system API (1/2011)
Reviewed-by: chegar, sherman