Doc the fact that layer sources influence render order

I ran into this problem at Science Hack Day SF 2014 and @kapadia walked me through how to fix it. Maybe this has been covered elsewhere, but I didn't find it.
standardize config settings
rewire oauth for atlas
move around oauth + tile server location better
basic config page saves configuration to disk
config pane will allow auth between atlas/standard
move /v4 to where it is used
check params before loading atlas
add config to settings
add config page after authorize
use tm.db for atlas params
better error handling for params on disk
back button for authorize config
improvements to authorize config
set MapboxTile instead of passing location
add url field to authorize
autodetect atlas vs mapbox.com on /authorize
add MapboxTile to app.db, remove other config locations
cleaning up changes
hide upload and mapid buttons