add twitter gem to gemspec #170
add twitter gem to gemspec #170

billy3321/onebox,techAPJ/onebox,aceofspades/onebox,aceofspades/onebox,billy3321/onebox,techAPJ/onebox,discourse/onebox,tarzan/onebox,discourse/onebox,billy3321/onebox,aceofspades/onebox,tarzan/onebox,fantasticfears/onebox,tarzan/onebox,techAPJ/onebox,riking/onebox