TaskManagerDialogUs: change "Fly" button to "Close"

This was confusing to most users who wanted to close the dialog
but did not see the Close button

Conflicts:
	src/Dialogs/Task/TaskManagerDialogUs.cpp
dlgStartupAssistant: make window fullscreen, add form caption
GlueMapWindowOverlays.cpp: make zoom cross hairs more visible
FlyingComputer.hpp: increase stationary clock to 121 seconds

Needed to detect no movement for 2 minutes
TaskRulesConfigPanel.cpp: fix Contest Nationality

This was using enum values for units instead of US / FAI

Conflicts:
	src/Dialogs/Settings/Panels/TaskRulesConfigPanel.cpp
MapLook.cpp: make compass darker on eInk
WindArrowLook.cpp: make arrow darker on eInk
Version bump, NEWS.txt: 1.2 stable
title.svg: change version to 1.2 stable