Merge branch 'release-1.5' into develop
* fixed a bug in voxelVote(). In this function all the atlases that contribute to the final voxel_voted_altas are gathered. There was an issue when --pairwise is used (default). Because of the way the pydpiper framework works, duplicate stages are ignored. When the template library is created in the MAGeT code, a number of atlases are created for each input file. Then, in the pairwise stage, these atlases are to be created again, but since they exist already, those stages are skipped. Moving on to voxelVote(), the labels from those skipped stages (with group name "templates") are selected for the label fusing. This meant that all labels that directly belonged to input files were never used. And when only 1 input file was specified, no input files existed for the voxel_vote command.
* bumped to version 1.6 (voxelVote fix for MAGeT)
Merge branch 'release-1.6'