8164169: Miscellaneous changes imported from jsr166 CVS 2016-09
Reviewed-by: martin, psandoz, shade

8142441: Improve jtreg tests for java.util.concurrent
Reviewed-by: martin, psandoz, chegar, shade, plevart

7034657: Update Creative Commons license URL in legal notices
Reviewed-by: chegar

7003745: Code style cleanups (sync from Dougs CVS)
Reviewed-by: chegar, dholmes

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

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