Some improvements on robbyrussel theme

[bobthefish] allow git untracked files override

Showing untracked files can be (very) slow on large NFS mounts. Allow the user to disable the '...' output when there are untracked files, either globally via fish config:

    set -g theme_display_git_untracked no

 or locally via git repo config:

    git config bash.showUntrackedFiles false

Fixes #434

Fix extraneous output from `type` on some fishes.

gnuykeaj theme

Added godfather theme.

adds the trout theme

Add fisk theme

Add emacs plugin

Incorporate changes after code review of #408

Updated in response to comments from @bucaran

Port of oh-my-zsh emacs plugin.
Includes a function to kill emacs from command line once
a daemon has started.

More information included in plugins/emacs/README.md.

See reference plugin here:
https://github.com/robbyrussell/oh-my-zsh/tree/master/plugins/emacs

Awesome README + @marcker's Logo

fix link to plugin repo