A mid-examinations commit. Changes:
 	+ do not display charge of chargable items via 4itemnames
	+ make mesecons store 10 eu
	+ fix diamond armour "invulnarability" (max fleshy protection is 80%)
	+ armour protection decreases as its wear increases
	+ fix workbench formspec
	+ fixed explorer_tools license
	~ update ToDo.txt
	+ jetpack charges faster
	- anti-gravitation bug (to be fixed soon)