Added zathura, added org to ranger rifle, configured emacs

emacs/.emacs.d/snippets/c++-mode/cerr

@@ -1,5 +0,0 @@
-# -*- mode: snippet -*-
-# name: cerr
-# key: err
-# --
-cerr << $0;

emacs/.emacs.d/snippets/c++-mode/cin

@@ -1,5 +0,0 @@
-# -*- mode: snippet -*-
-# name: cin
-# key: cin
-# --
-cin >> $0;

emacs/.emacs.d/snippets/c++-mode/cout

@@ -1,8 +0,0 @@
-# -*- mode: snippet -*-
-# contributor: York Zhao <gtdplatform@gmail.com>
-# name: cout
-# key: cout
-# --
-`(progn (goto-char (point-min)) (unless (re-search-forward
-"^using\\s-+namespace std;" nil 'no-errer) "std::"))
-`cout << $0${1: << "${2:\n}"};

emacs/.emacs.d/snippets/c++-mode/fori

@@ -1,7 +0,0 @@
-# -*- mode: snippet -*-
-# name: fori
-# key: fori
-# --
-for (${1:auto }${2:it} = ${3:var}.begin(); $2 != $3.end(); ++$2) {
-    $0
-}

emacs/.emacs.d/snippets/c++-mode/io

@@ -1,5 +0,0 @@
-# -*- mode: snippet -*-
-# name: io
-# key: io
-# --
-#include <iostream>