Merge pull request #157 from CestDiego/develop

Add paradox for list-packages alternative

contrib/paradox/README.md

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+# Paradox
+
+This contrib layer switches the old list-packages for the more feature
+rich Paradox package. you can find more info
+[here](https://github.com/Bruce-Connor/paradox). Important this will
+override your old `list-packages`.
+
+## Usage
+
+You can do `SPC a P` to open paradox-list-packages. Sad part is that
+for now you can only swap to evil-emacs-state `C-z` and navigate with
+n and p, other helpful tips show when you press `h`. Refer to the
+github page of the package for more info.
+
+## Repo stars
+
+To be able to star packages you have to create a github
+[token](https://github.com/settings/tokens/new) and only add Read
+permissions to your public repos then you set it in your
+configuration files like this:
+
+```elisp
+  (setq paradox-github-token "<replace your token here>")
+```
+
+### OR
+
+If you are feeling like so, create a .authinfo.gpg file in your home
+directory. (With Emacs, obviously... `C-x C-f ~/.authinfo.gpg RET`).
+
+The contents of this file follow
+[netrc guidelines](http://www.gnu.org/software/emacs/manual/html_node/auth/Help-for-users.html).
+You should have a file like this:
+
+```
+machine github.com user paradox password <here goes your token without quotes> port paradox 
+```
+
+And then proceed to save that buffer. Just going for `OK` in the pop up
+menu is OK. Enter your super secure password and now you have your
+GitHub token being accesed securely ( even though you only gave
+permissions to read your public repos, I'm sure I'll find another use
+for this code later)

contrib/paradox/packages.el

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+(defvar paradox-packages
+  '(
+    paradox
+    )
+  "List of all packages to install and/or initialize. Built-in packages
+which require an initialization must be listed explicitly in the list.")
+
+(defvar paradox-excluded-packages '()
+  "List of packages to exclude.")
+
+;; For each package, define a function paradox/init-<package-paradox>
+;;
+(defun paradox/init-paradox ()
+  (use-package paradox
+    :commands paradox-list-packages
+    :defer t
+    :init
+    (progn
+      (defun spacemacs/paradox-list-packages ()
+        (interactive)
+        (require 'epa-file)
+        (require 'auth-source)
+        (when (and (not (boundp 'paradox-github-token)) 
+                   (file-exists-p "~/.authinfo.gpg"))
+          (let ((authinfo-result (car (auth-source-search 
+                                       :max 1
+                                       :host "github.com"
+                                       :port "paradox" 
+                                       :user "paradox"
+                                       :require '(:secret)))))
+            (let ((paradox-token (plist-get authinfo-result :secret))) 
+              (setq paradox-github-token (if (functionp paradox-token)
+                                             (funcall paradox-token)
+                                           paradox-token)))))
+        (paradox-list-packages nil))
+      
+        (eval-after-load "evil-leader"
+          (evil-leader/set-key
+            "aP" 'spacemacs/paradox-list-packages))
+        )
+    ))
+      
+