residual averaging convergence
residual avg file printing
update multigridAveraging
added plots for refinement averaging
Working on results
Merge branch 'master' of github.com:donjan/compelectromag

Conflicts:
	code/EAPmodel/maxwell_stress_multigridAveraging.edp
Added the mesh averaging example in the presentation and changed the pdfs to jpgs.
Also found some good references for the justiffication of the ball (sounds better as "droplet") example.