Added better file color for helm.
Merge branch 'master' of github.com:russell/dotfiles

* 'master' of github.com:russell/dotfiles:
  Removed mbsync agent from gnus config.
  Changed fonts.
  Revert to using standard ansi-term mode.
  Removed mulit-term.
Safer loading of apt-utils override for helm.
Added some allowed buffer local variables.
Truncate lines if they start to wrap.
Added gnus posting style for Melbourne UNI.
Fix dirtrack modeline so that it doesn't track hostnames