remove leading whitespace in .gitignore

.gitignore

-	AuxGrid.d
-	ClipPlane.cc
-	ClipPlane.d
-	ClipPlane.h
-	Colourscale.d
-	Connection.d
-	ContCable.d
-	CutSurfaces.d
-	DataOpacity.cc
-	DataOpacity.d
-	DataOpacity.h
-	DeadDataGUI.cc
-	DeadDataGUI.d
-	DeadDataGUI.h
-	DrawingObjects.d
-	FileType.d
-	Fl_Gl_Tb_Window.d
-	Frame.d
-	Graph.d
-	HDF5DataBrowser.cc
-	HDF5DataBrowser.h
-	Hexahedron.d
-	HiLiteWinInfo.cc
-	HiLiteWinInfo.d
-	HiLiteWinInfo.h
-	IGBheader.d
-	IsoLines.d
-	IsoSurface.d
-	Matrix4x4.d
-	ModInt.d
-	Model.d
-	Mouse.d
-	MyValueInput.d
-	Myslider.d
-	Orienter.d
-	PNGwrite.d
-	PlotWin.d
-	Point.d
-	PolyGon.d
-	Prism.d
-	Pyramid.d
-	Quadrilateral.d
-	Region.d
-	Sequence.cc
-	Sequence.d
-	Sequence.h
-	Surfaces.d
-	TBmeshWin.d
-	Tetrahedral.d
-	TimeLink.cc
-	TimeLink.d
-	TimeLink.h
-	Trackball.d
-	Triangle.d
-	VecData.d
-	Vector3D.d
-	Vector4D.d
-	colourchoice.cc
-	colourchoice.d
-	colourchoice.h
-	isosurf.cc
-	isosurf.d
-	isosurf.h
-	main.d
-	plottingwin.cc
-	plottingwin.d
-	plottingwin.h
-	short_float.d
-	trimesh.cc
-	trimesh.d
-	trimesh.h
+AuxGrid.d
+ClipPlane.cc
+ClipPlane.d
+ClipPlane.h
+Colourscale.d
+Connection.d
+ContCable.d
+CutSurfaces.d
+DataOpacity.cc
+DataOpacity.d
+DataOpacity.h
+DeadDataGUI.cc
+DeadDataGUI.d
+DeadDataGUI.h
+DrawingObjects.d
+FileType.d
+Fl_Gl_Tb_Window.d
+Frame.d
+Graph.d
+HDF5DataBrowser.cc
+HDF5DataBrowser.h
+Hexahedron.d
+HiLiteWinInfo.cc
+HiLiteWinInfo.d
+HiLiteWinInfo.h
+IGBheader.d
+IsoLines.d
+IsoSurface.d
+Matrix4x4.d
+ModInt.d
+Model.d
+Mouse.d
+MyValueInput.d
+Myslider.d
+Orienter.d
+PNGwrite.d
+PlotWin.d
+Point.d
+PolyGon.d
+Prism.d
+Pyramid.d
+Quadrilateral.d
+Region.d
+Sequence.cc
+Sequence.d
+Sequence.h
+Surfaces.d
+TBmeshWin.d
+Tetrahedral.d
+TimeLink.cc
+TimeLink.d
+TimeLink.h
+Trackball.d
+Triangle.d
+VecData.d
+Vector3D.d
+Vector4D.d
+colourchoice.cc
+colourchoice.d
+colourchoice.h
+isosurf.cc
+isosurf.d
+isosurf.h
+main.d
+plottingwin.cc
+plottingwin.d
+plottingwin.h
+short_float.d
+trimesh.cc
+trimesh.d
+trimesh.h
+build