Update LICENSE.txt year to 2013
Update LICENSE.txt year to 2013

https://trello.com/c/Iq5CJmIh/

Update our open source license copyright to the current year.

Change-Id: I722f3ca2b1644379b50e0609052ce9d43ade7b32

justin-hayes/motech,koshalt/motech,sebbrudzinski/motech,smalecki/motech,tstalka/motech,frankhuster/motech,pgesek/motech,ngraczewski/motech,shubhambeehyv/motech,tectronics/motech,jefeweisen/motech,tstalka/motech,frankhuster/motech,tectronics/motech,tstalka/motech,adamkalmus/motech,frankhuster/motech,pgesek/motech,ngraczewski/motech,smalecki/motech,adamkalmus/motech,wstrzelczyk/motech,tectronics/motech,LukSkarDev/motech,pgesek/motech,kmadej/motech,ngraczewski/motech,justin-hayes/motech,shubhambeehyv/motech,sebbrudzinski/motech,koshalt/motech,sebbrudzinski/motech,tstalka/motech,wstrzelczyk/motech,wstrzelczyk/motech,adamkalmus/motech,justin-hayes/motech,smalecki/motech,jefeweisen/motech,smalecki/motech,shubhambeehyv/motech,pgesek/motech,jefeweisen/motech,shubhambeehyv/motech,kmadej/motech,tectronics/motech,koshalt/motech,adamkalmus/motech,sebbrudzinski/motech,frankhuster/motech,koshalt/motech,LukSkarDev/motech,LukSkarDev/motech,kmadej/motech,kmadej/motech,LukSkarDev/motech,wstrzelczyk/motech,jefeweisen/motech,ngraczewski/motech,justin-hayes/motech