def pronto(specified_commit = nil)
      commit = "origin/master"
      commit = specified_commit if !specified_commit.nil?
      pronto_output = `#{'bundle exec ' if File.exists?('Gemfile')}pronto run -f json -c #{commit}`
      JSON.parse(pronto_output)
    end
def pronto(specified_commit = nil)
      commit = "origin/master"
      commit = specified_commit if !specified_commit.nil?
      pronto_output = `#{'bundle exec ' if File.exists?('Gemfile')}pronto run -f json -c #{commit}`
      JSON.parse(pronto_output)
    end
Executes pronto command
 @param commit [String] hash/branch/tag
 @return [Hash] Converted hash from pronto json output