Merge branch 'master' into nitime

* master:
  fixed outputs assignment
  fix refit
  doc: added reference to BSplineSyn
  fix: allow 4 parameters for antsRegistration transform
  fix: cleaned prov
  fix: changed iri to current standard
  Added link tracking.
  Updated google tracking.
fix excp handling
Merge branch 'nitime' into testing_tmp

* nitime:
  fix excp handling