Removing rbenv & switching to chruby.
Removing submodules now included in Janus.

Janus now includes repeat plugin and Slim syntax support.

Also removing my private repos in submodules rather than standard public
versions.
Bumping submodules for Vim/Janus.
Don't bother arsing about with Powerline font.
Disable NERDTree & de-fancy Powerline.

Going to start using Netrw and ctrl-p, instead of NERDTree.

Got fed up with Powerline patched fonts and it still not working
properly in urxvt, then the arrow heights were wrong.  All in all a PITA
for little benefit so now using standard font and 'compatible' mode
Powerline.