Move dotfiles to ~/.config/dotfiles/

This should be more friendly with XDG user configuration in ~/.config/.

Existing configuration should be left intact by properly written dotfile
install commands.
Updated drybjed's config files

Now dotfiles should install quickier, because ViM plugins are not
installed by default. Also, owner config won't be installed on non-owner
accounts.
Update .travis.yml for new syntax
Merge pull request #2 from debops/dotfiles

Updates to dotfiles support