Added some resources PNGs
	new file:   res/back.png
	new file:   res/books
	new file:   res/checkbox.png
	new file:   res/colorpicker.png
	new file:   res/forward.png
	new file:   res/question.png
	new file:   res/reload.png
	new file:   res/settings.png
	new file:   res/web.png