moved the arachni gem to the dev dependencies in the gemspec
moved the arachni gem to the dev dependencies in the gemspec

Pratibha25/gauntlt,gauntlt/gauntlt,iallison/gauntlt,iallison/gauntlt,Pratibha25/gauntlt,Joeyn414/gauntlt,gauntlt/gauntlt,Joeyn414/gauntlt