LU-2446 build: Update Whamcloud copyright messages for Intel

LU-2446 build: Update Whamcloud copyright messages for Intel

Update the copyright messages for master branch for Intel.

These are the manual changes required.
Issues addressed:
  The addition of the GPL to two header files
  Updating the Man page copyrights
  Dealing with nonlinear year issues in git
  Removal of a double copyright
  Careful addition of Intel copyrights in a tricky spots

Signed-off-by: Keith Mannthey <keith.mannthey@intel.com>
Change-Id: Iaf8bd9f2a7e38c265c86c477fdf51607c1590b86
Reviewed-on: http://review.whamcloud.com/4948
Tested-by: Hudson
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>