RowFormWidget.cpp: some forms' controls falling off bottom of page

In Advanced > Setup > Units in landscape mode, the Lat/Lon property
was off the bottom of the page.

Caused assert top < bottom error.
InputEventsActions.cpp: allow new waypoint at panned location

eventAddWaypoint(_T("panned_location"))
default.xci: add "Add waypoint event" to Pan and normal menus
InputEventsActions.cpp: update waypoint file after adding a waypoint
HomeGlue.cpp: check first airports, then non-airports in SetHome()

Prefer but not require that Home location is an airport.
Add bool airports_only parameter to FindHomeLocation()
Startup.cpp: call SetHome() with reset = true;

This causes SetHome() to search by location instead of by waypoint ID,
because the waypoint file may have changed, invalidating the stored
Home wp id.
NEWS.txt
InfoBoxes/Content/Places: remote unused code
InfoBoxes/Data: add SetClickToConfigure() method

Tells user to click Infobox to configure it
HomeGlue.cpp: fix bug causing elevation to be invalid
IB/Content/Task.cpp: show "Click to configure" if not configured.

Update three Home waypoint boxes when Home is not available