Verbosity level (the higher the more verbose)

Property definitions

github $ LoaderConfig :: verbose_level
	# Verbosity level (the higher the more verbose)
	fun verbose_level: Int do
		var opt = opt_start.value
		if opt > 0 then
			return info_level
		end
		var v = ini["loader.verbose"]
		if v != null and v.to_i > 0 then
			return info_level
		end
		return warn_level
	end
lib/github/loader.nit:132,2--143,4