Regenerate gemspec for version 0.4.1
Regenerate gemspec for version 0.4.1

kanpol/rapk,aaroalan/ruby_apk,NimbleDroid/ruby_apk,justonestep/ruby_apk,ayufan/ruby_apk,vaginessa/ruby_apk,playtestcloud/ruby_apk,pwintermantel/ruby_apk,SecureBrain/ruby_apk,tajchert/ruby_apk