D3: Improve switch device popover support

1. Correct initial level slider
2. Implement update support
wednesday mega-edits

1. clean up use of utility.broker
2. add initial support for reelyActive presence system
include rssi in tag properties
the 'set' task is reserved to the steward when using the thing management protocol
reelceivers, first update
spelling
update reelyactive drivers to latest parsing
fix placement of reelceiver's lastSample
off-by-one error on EUI64
slight re-arrangements
D3: Popover Fixes

1. Revise switch popover layout (#36)
2. Extend popover name repairs to other popovers to prevent visual
conflicts with long names
3. Show device name (now editable) in climate control popover
reelceiver temperatures are internal!
thursday evening commits

1. initial check-in of MQTT support
2. fix minor bugs in chromecast, xively, and powercolor drivers
3. near final-checking of reelyactive support
mqtt final-checkin ?
HTML5/D3: Temporarily remove link to apprentices