Rename to map.json and some design changes

Made some aethetic changes to engineering and airlock, fixed path tile
layer for those areas, gave path tile var name=path, made a name=airlock
tile.
Set default transparencies correctly

Very small change.
Exported from map.json to test.lua
Merge pull request #7 from ZNCatlaw/map_work

Map work
Ziggy code hiding!
Now we have crew and stations and update/draw chain
Task stubs, about to start anim definitions
Change Path Layer Name to Walkable

For both .json and .lua
Merge pull request #8 from ZNCatlaw/ship_objects

Ship objects
Merge pull request #9 from ZNCatlaw/map_work

Change Path Layer Name to Walkable
Fixed transparency settings to default
Merge pull request #10 from ZNCatlaw/map_work

Fixed transparency settings to default
Merge branch 'master' into agent_that_walks_between_rooms

Conflicts:
	game/init.lua
	game/states/play_state.lua
Merge branch 'master' into agent_that_walks_between_rooms
getName returns a number if the name is 'path'w