Fully integrate with ssMitoThinning.

Binary projection is now save as PNG file.

Vector double *attributes is used to store results calculated by MitoGraph (e.g. surface-volume, length, skeleton-volume)

Summary file is now created where parameters and results are saved.

Non debug targets print nothing but results on screen.

Errors in MitoThinning concerning nodes of degree 2 and edges filtering were fixed.
Backup before merge.
SavePolyData arguments has been fixed.
Flag -precision_off has been added.
MitoGraph has now a variable _improve_skeleton_quality that can be deactivated by the flag _precision_off. When this flag is on, the algorithm expands isolated voxels and isolated pairs of voxels so that the edge tracker is able to detect them. In addition, when this flag is on, the algorithm searches for connected component and forces every one to have at least one junction voxel so that no cc will be missed by the edge tracker.
MitoGraph has now a new function called FillHoles that is used when the flag _improve_skeleton_quality is on. This function fills hole sin the 3D image by using a algorithm that labels connected components of the background. Minor changes in MitoThinning have also been done.
Summary file is appended now.
New comments were added at the header of .cpp files.
Merge pull request #7 from vianamp/Skeletonization

MitoGraph v2.0 for Releasing According the Protocol Paper