Cherrypick from master 2015-09-14 14:53:31 UTC Matthew Webster <mwebster@fmrib.ox.ac.uk> 'fix for tica/migp problem':
    dual_regression
    melgmix.cc
    melgmix.h
    melhlprfns.h
    melica.cc
    melica.h
    melpca.cc
    melpca.h