Changed copyright year to 2016.
Changed copyright year to 2016.

The first release of Numsense was in the very beginning of 2016, so
setting the copyright year to 2014 was a bit of stretch. Actually, it was
a copy/paste oversight.

simegeorge/Numsense,simegeorge/Numsense,ErikSchierboom/Numsense,ErikSchierboom/Numsense,albertodall/Numsense,ploeh/Numsense,albertodall/Numsense,ploeh/Numsense