Update the copyright messages for changes made in 2014.

In some cases, changes made in 2013 did not generate an updated
copyright message, so these files are updated accordingly.  In some
cases there were no licenses on newly-added files, so add them (either
with new copyrights, or including copyrights from the source files).

Some types of changes that are not actually changing the code
(e.g. whitespace, mass changes to add or remote prefixes, patches
updating the copyright messages, patch reversions and the reverted
patch, patches that only delete code, etc.) have been excluded.

The updatecw.sh script was updated to fix a number of problems:
- it now handles comments in nroff (man page) files properly
- remove need to handle non-Intel copyrights specially
- allow subdirectory to be specified on command-line
- improve script debugging when running with "sh -vx"
- print patches changing the most files, to catch mass replacements

There are still a few cases that need to be fixed up by hand (e.g.
files split up and "git log --follow" can't find the original).

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Change-Id: Ib4875400a4908dc79ddc8b82ab0fe3ee903ebbe5
Reviewed-on: http://review.whamcloud.com/13174


Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>