Update gemspec to include more files.
Update gemspec to include more files.

chazsconi/typhoeus,nju520/typhoeus,pravi/typhoeus,tinfoil/typhoeus,markschmidt/typhoeus,wcmonty/typhoeus,tompscanlan/typhoeus,t3hpr1m3/typhoeus,chazsconi/typhoeus,EddyLuten/typhoeus,markschmidt/typhoeus,kkirsche/typhoeus,bitherder/typhoeus,PericlesTheo/typhoeus,telekomatrix/typhoeus,sportngin/typhoeus,typhoeus/typhoeus,AvnerCohen/typhoeus,bitherder/typhoeus,nevans/typhoeus,bitgal/typhoeus