Added PIM2013.pro
Drawing a 3D view of the image
adding missing files
fixing Makefile
Adding buttons to UI
Changing glviewer image from UI
adding missing files
Changed the way pixel color is calculated on GLViewer class, for PLY
visualisation.
Added .tmp folder to gitignore
UI
Adding Pictures to UI. ERROR: GLViewer reset
Showing displacement, grid 4x4. TODO: put the right image in the grid. FIXME: returning to mesh option is problematic
Merge branch 'dev' into tiago/UI

Conflicts:
	include/Image.h
	src/Camera.cpp
	src/Image.cpp
	src/main.cpp
Solving bug when changing btw glviwer and images. Works, not a good solution
Reading the rigth images for displacement
Fixing bug while chaging btw displacement and mesh
Adding displacement button. BUG FIX: Image::Tracking not working
Calculating displacement
Fixed many bugs.

Signed-off-by: Vinicius Dias de Oliveira Gardelli <gardelli123@gmail.com>