Merge pull request #1 from ImageGuidedTherapyLab/master

WIP: setting up initial solver for @mjonesa
ENH: portable build @fuentesdt
ENH: visualize
ENH: Visualize Solution @fuentesdt
WIP: Included point source in the cube
WIP: adding exodus file for mesh
STYLE: only store ascii files
Merge pull request #1 from mjonesa/master

WIP: exodus