Fixed win compile error.
Merge branch 'master' of github.com:mavlink/qgroundcontrol into config
wip decoupling the UI (view) from the param data model
fix null ptr exception
remove pure virtual
wip decoupling the UI (view) from the param data model
remove pure virtual
rename parameters
utility methods for data model
Move handleParameterUpdate into data model class
remove unused methods
Move more model code into the model class
cleanupt paramInfo (tooltips)
fix debug str
ignoring UAS updates while slider has no param name
Refactoring comms code
 more comms refactoring
move parameter meta info into param data model
debugging retransmission of read param list
debug multiple parameter widgets creation