Merge branch 'master' of https://github.com/robjhyndman/forecast

* 'master' of https://github.com/robjhyndman/forecast:
  Fixed error in stlf help page. Modified arfima so it works harder to ensure a stationary ARMA component. Updated HoltWintersNew.R to remove unnecessary functions that are in other files, and to replace hw() with zzhw() to avoid a name clash.

Conflicts:
	R/HoltWintersNew.R