update map building doc to reflect correct heal rates
rename test-map.tmx to demo-map.tmx, added the setattr map action demo.
remove test-map.tmx
give level 4 hiding ice an attack rating
fix a typo
update todo and changes
fix level 3 upgrade station dialogue
demo map tweaks to counter test area
show the level title if there is one
Let @setattr triggers grab any object if no filter is given.
Add story levels definitions.
Add sick green ice character data and crash animation.
Update setattr examples.
Update level 4 diagnostics doctor dialogue.
Add level 4 map file.