Move node.selected to node.radios[x].selected.
Use drawMarker() to set channel info and used/notused background.
Add channel and band to node json.
Splite some code to APNode_ext.js
Split some function to wall_area.js.
Replace loop in sendNodes() with JSON.stringify().
Add some fake elements for drop test.
Drop-Node could work now. (No data for node yet)
Move drop code to APNode_ext.js.
Tweak some CSS and change the wifi image.