Not fully working: newly added plot shows correct level.
Newly added plots now show and request the correct level.
Cleanups
Renamings.
Cleanups and shuffling.
Removed unused code.
Sensor name and time context placement with bolding.
Add/Remove buttons on right now.
Add/remove button object constancy almost working.
Cleaner transition chaining.
Full object constancy for add/remove buttons.
Merge branch 'master' into deploy_client