initial commit
adding initial sphinx docs
More pep8 friendly and new style signals added
Merge pull request #1 from leliel12/master

More pep8 friendly and new style signals added
The order of ConnectToTrackerStep and PlaceImageFiducialsStep was interchanged. The reason is that it is not necessary to be connected to the tracker to place the fiducials. It is possible to do that offline.
* Now it is possible to acquire more than one volume
* VolumeRenderingViewer.py change its name to VolumesViewer.py
* A new VolumeRenderingViewer.py was created in order to manage the renderings
* ModelsViewer.py was also modified in order to look like the others viewers
Merge branch 'master' of https://github.com/rsgalloway/QRangeSlider
* Now it is possible to reconstruct more than one volume
* The class VolumeRenderingPropertiesMenu was added. It has a widget to manage the volume rendering properties.