STYLE: Replace C-style casts with C++-style casts

Change-Id: I64fbcf860f945368b857277916d0df02f8c7a768
BUG: Return reference to this in assignment operator

Change-Id: I569036eaf2c447c5a04287290db147fe92e8c32c
STYLE: Remove duplicate break in itkTubeCVTImageFilter

Change-Id: I7ebb9c0ab08d125e9f40ea92fff17c1d0b3c281d
Merge topic 'LabelSetMeasuresOperatorEqRetRefThis'

59e6638 BUG: Return reference to this in assignment operator
Merge topic 'TubeCVTImageFilterRemoveDuplicateBreak'

0fe1e16 STYLE: Remove duplicate break in itkTubeCVTImageFilter
Merge topic 'ReplaceCStyleCasts'

a2b5df0 STYLE: Replace C-style casts with C++-style casts