Fix typo in gemspec files
Fix typo in gemspec files

gregweber/ruby-coffee-binary,eileencodes/ruby-coffee-script,rkh/ruby-coffee-script,jsdf/ruby-coffee-react,eileencodes/ruby-coffee-script,rails/ruby-coffee-script,HubSpot/ruby-coffee-script-multi,mavenlink/ruby-coffee-script,Roonin-mx/livescript-ruby,josh/ruby-coffee-script,jsdf/ruby-coffee-react,rails/ruby-coffee-script,mavenlink/ruby-coffee-script,jsdf/ruby-coffee-react