Update dependencies in gemspec
Update dependencies in gemspec

SciRuby/statsample,mikecmpbll/statsample,SciRuby/statsample,michaelphines/statsample,michaelphines/statsample,v0dro/statsample,mikecmpbll/statsample,v0dro/statsample,v0dro/statsample,IsmailM/statsample,michaelphines/statsample,IsmailM/statsample,mikecmpbll/statsample,IsmailM/statsample