Don't load completion if nvm is not installed
nvm handles adding npm to the path
Merge branch 'master' of github.com:dansomething/dotfiles

* 'master' of github.com:dansomething/dotfiles:
  Sync to latest dot_vim
Merge branch 'master' of github.com:dansomething/dotfiles

* 'master' of github.com:dansomething/dotfiles:
  Sync with latest dot_vim
  Add namespace to repl prompt
Sync to latest dot_vim