Regenerate gemspec for version 0.5.3
Regenerate gemspec for version 0.5.3

wasabia/bnbtripSorcery,kristianmandrup/sorcery,wasabia/bnbtripSorcery,Sorcery/sorcery,webgago/sorcery,NoamB/sorcery,jshum/sorcery,rubenmoya/sorcery,Sology/sorcery,Borzik/sorcery,athix/sorcery,Sorcery/sorcery,ikhakoo/sorcery,Borzik/sorcery,wendy0402/sorcery,athix/sorcery,NoamB/sorcery,webgago/sorcery,wendy0402/sorcery,alexanderedge/sorcery,creepycheese/sorcery,Sology/sorcery,athix/sorcery,jerefrer/sorcery,Sorcery/sorcery,creepycheese/sorcery,jshum/sorcery,jerefrer/sorcery,ikhakoo/sorcery,alexanderedge/sorcery,kristianmandrup/sorcery,rubenmoya/sorcery,trustyknave/sorcery,trustyknave/sorcery