- Added ObjOrPlyModel class to replace the VeinsModel.
 - Made the MainFrame use the new class instead of the old one.
The result it the application can now open .ply files. It takes about 40
seconds to open the 289MB 20120730 BRAC result-full.ply file on my
computer with about 21FPS.
 - Added ObjOrPlyModel to replace VeinsModel.
 - Made MainFrame use ObjOrPlyModel instead of VeinsModel.
As result the application can now open .ply files in addition to .obj
files. It took 40s and about 3GiB RAM to open 20120730 BRAC
result-full.ply on my computer, which could render it at 21FPS.
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	Raa3D/bin/main/MainFrame$1.class
	Raa3D/bin/main/MainFrame$10.class
	Raa3D/bin/main/MainFrame$11.class
	Raa3D/bin/main/MainFrame$2.class
	Raa3D/bin/main/MainFrame$3.class
	Raa3D/bin/main/MainFrame$4.class
	Raa3D/bin/main/MainFrame$5.class
	Raa3D/bin/main/MainFrame$6.class
	Raa3D/bin/main/MainFrame$7.class
	Raa3D/bin/main/MainFrame$8.class
	Raa3D/bin/main/MainFrame$9.class
	Raa3D/bin/main/MainFrame.class