added Ruby 2.0.0 to travis
added Ruby 2.0.0 to travis

uksa/mechanize,eligoenergy/mechanize,pwnall/mechanize,gchan/mechanize,sjchakrav/mechanize,uksa/mechanize,sparklemotion/mechanize,sparklemotion/mechanize,eligoenergy/mechanize,bugmelody/mechanize,pwnall/mechanize,flavorjones/mechanize,jeremiahmarks/mechanize,jeremiahmarks/mechanize,bugmelody/mechanize,gchan/mechanize,sjchakrav/mechanize