Reintroduce track properties timezone selection.\nTODO: revisit this again with the Route properties dialog refactoring to unify the code.
Fix indentation, no code changes.
Implement selectable depth units for the dashboard plugin and the supporting tooling
Fix the path messed up with the previous commit
Merge branch 'master' of https://github.com/OpenCPN/OpenCPN into mainline

Conflicts:
	include/TrackPropDlg.h
	include/navutil.h
	src/TrackPropDlg.cpp
	src/navutil.cpp
	src/pluginmanager.cpp
Merge branch 'master' of https://github.com/OpenCPN/OpenCPN into mainline

Conflicts:
	src/pluginmanager.cpp