update gemspec
update gemspec

mlinksva/licensee,benbalter/licensee,pchaigno/licensee,benbalter/licensee,JuanitoFatas/licensee,pchaigno/licensee,willbar/licensee,JuanitoFatas/licensee,mlinksva/licensee,willbar/licensee,pablrod/licensee,pablrod/licensee