Fix gemspec
Fix gemspec

amaierhofer/rpush,zenjoy/rpush,krakatoa/rpush,zakwanhaj/rpush,rafal-radziszewski/rpush,kjnsn/rpush,rpush/rpush,joshuairl/rpush,aried3r/rpush,chiu/rpush,rafal-radziszewski/rpush,mandarin6b0/rpush,jmnsf/rpush,ileitch/rapns,eleostech/rapns