Fixed admmtotalvariationcudatest failure in coverage test
(by providing a correct phases file)
Cosmetics (changed variable names)
Modified the SplatWithKnownWeightsImageFilter to ensure compatibility
with versions of ITK older than 4.4
GenerateOutputInformation was private in
rtkForwardDifferenceGradientImageFilter. Made it protected.
Merge branch 'master' of github.com:SimonRit/RTK