Add FiberViewerLight extension

See issue #162
Add DTIAtlasFiberAnalyzer extension

see issue # 164
Update DTIProcess extension

The extension has been entirely repackage to compile and package properly. The cmake flags are now given to the sub project through superbuild. The cmake* files follow the same format as the one provided by Slicer and DTIPrep.
Merge pull request #165 from booboo69500/update-DTIProcess

The extension has been entirely repackage to compile and package properly. The cmake flags are now given to the sub project through superbuild. The cmake* files follow the same format as the one provided by Slicer and DTIPrep.
Merge pull request #163 from booboo69500/162-add-FiberViewerLight

Add FiberViewerLight extension - FiberViewerLight allows the user to visualize and interact with some fiber tracts to edit them.
Merge pull request #166 from booboo69500/164-add-DTIAtlasFiberAnalyzer

Add DTIAtlasFiberAnalyzer extension - This extension provides a tool to analyze fiber tracts from Diffusion Tensor Images (DTI). One gives the tracts an average space and provides the transforms to move the tracts from the average space to each individual image. The software will compute various metrics along the fibers in the subjects space.
Add DTIAtlasBuilder extension See issue #167
Merge pull request #168 from adrienkaiser/167-add-DTIAtlasBuiler

Add DTIAtlasBuilder extension

DTIAtlasBuilder is a tool to create an DTI atlas image from several DTI images : https://www.nitrc.org/projects/dtiatlasbuilder

Your can find the source code here : https://github.com/NIRALUser/DTIAtlasBuilder

A tutorial is available on NITRC : https://www.nitrc.org/docman/view.php/636/1189/DTIAtlasBuilder_Tutorial.pdf

The tool is a GUI where the user can add his DTI images, and set several options. Then the program will write a python script and run it to call external tools to process the data and create the Atlas.

Closes #167
update wrong git repository and tag
Merge pull request #169 from adrienkaiser/update-DTIAtlasBuilder

Update wrong git repository and tag
ENH: Updated SlicerRT: Fixing nightly builds issue due to DCMTK changes (other improvements are also included, but they are going to be released officially in an upcoming version). See more info at https://www.assembla.com/code/slicerrt/subversion/changesets/compare/519..572
Merge pull request #170 from SlicerRt/update-SlicerRT

ENH: Updated SlicerRT: Fixing nightly builds issue due to DCMTK changes ...