deletes css class icon-big
	deleted:    public/system/nodes/attachments/000/000/001/original/one.rb
	deleted:    public/system/nodes/attachments/000/000/002/original/average.rb
	deleted:    public/system/nodes/attachments/000/000/003/original/identity.rb
adds SiliconHeart module for ruby nodes
adds simple api to access input and output files and command line arguments
adds store location statements to some actions
updates a sample node to use the new and fancy SiliconHeart script API
updates how scripts are executed
input and output files are now passed as command line arguments to the nodes
also additional arguments can be passed