Changed formatting.
Merge branch 'master' of github.com:pquaid/track-tools

Conflicts:
	dir.cc
	dir.h
	document.h
	exception.h
	gnuplot.cc
	gnuplot.h
	gpx.h
	kml.cc
	point.h
	track.cc
	track.h
Fix constexpr
Merge branch 'master' of github.com:pquaid/track-tools

Conflicts:
	dir.h
	kml.cc
	point.cc
	point.h