DroneStation  Qt init.
updated qt project
implemented about and log view
refactored layout
added control and waypoint list view
cleaned
updated layout
added list data model
updated FileIO object
added CompManager

use this qml object to connect signal from qml objects (front-end) to
slots (back-end)
refactored test service
updated main program
updated project
added mainservice, need implementation
Merge remote-tracking branch 'origin/controlcenter_qt'