ENH: revise use of robust and coding of nuisance variables
BUG/ENH: removed hist matching from motion estimation, improved robust cbf , removal of motion related nuisance vars
WIP: need to think more about how to select robust params or just punt to the command line option
BUG: forgot robust library
BUG: clone did not use CopyInformation
ENH: m0 stuff, altering rob-reg options, other minor diffs
ENH: very simple example regression
ENH: option for non default R installation
BUG: use http address for ANTS repo
Merge branch 'master' of http://github.com/stnava/ANTsR
ENH: Made R_DIR consient with ITK_DIR,etc
BUG: Removed slashes
ENH: add ClusterThresholdVariate to ImageMath
BUG: in use of robust parameter passing by user
BUG: CopyInformation() removed
ENH: Fixed bug related to as.data.frame coercion
ENH: Fixed units to return in mL/100g/min
WIP: label merger
ENH: Fixed git address
ENH: add names to perfusion predictors, fill holes in mask