Reviewed-by: coffeys

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

Reviewed-by: alexsch, anthony

Reviewed-by: anthony, alexsch

Summary: Added comment block after copyright block stating that code is unfit for production.
Reviewed-by: ohair

Reviewed-by: rupashka

Reviewed-by: darcy, weijun