# File lib/common.rb, line 160
    def log(lvl, str)
        case lvl
        when :DEBUG
            _log("DEBUG".magenta(), str) if ENV["DEBUG"].to_s() != ""
        when :DEBUG_TRAVIS
            _log("DEBUG_TRAVIS".magenta(), str) if ENV["DEBUG_TRAVIS"].to_s() != ""
        when :VERBOSE
            _log("INFO".blue(), str) if @@verbose_log == true
        when :INFO
            _log("INFO".green(), str)
        when :WARNING
            _log("WARNING".brown(), str)
        when :ERROR
            _log("ERROR".red(), str, STDERR)
        else
            _log(lvl, str)
        end
    end