Add kivy layer

Removed the kivy package from the major-modes layer.

CHANGELOG.develop

@@ -308,6 +308,7 @@ sane way, here is the complete list of changed key bindings
 - json (thanks to Sylvain Benner, Boris Buliga and Tommi Komulainen)
 - jsonnet (thanks to liztio and Robby O'Connor)
 - julia (thanks to Adam Beckmeyer and Guido Kraemer)
+- kivy (thanks to Ryota Kayanuma)
 - kotlin (thanks to Shanavas M)
 - pact (thanks to Colin Woodbury)
 - perl5 (thanks to Troy Hinckley, Jinseop Kim and Michael Rohleder)
@@ -1849,6 +1850,8 @@ Other:
 - Improved support for workman keyboard layout (thanks to Benjamin Reynolds)
 - Added =after-config= hooks for lazy-loaded packages (thanks to CharlesHD)
 - Added undo-tree visualizer mapping (thanks to CharlesHD)
+**** Kivy
+- Added the =kivy= package (thanks to Nasser Alshammari and Ryota Kayanuma)
 **** LaTeX
 - New package =magic-latex-buffer= (thanks to benquebec)
 - New layer variable =latex-enable-magic= to enable =magic= symbols in latex
@@ -1949,7 +1952,6 @@ Other:
 - Added ebuild-mode (thanks to Kai Wohlfahrt)
 - Added the vala programming language (thanks to Steven Allen)
 - Added hoon (thanks to Hunter Haugen)
-- Added kivy (thanks to Nasser Alshammari)
 **** Mu4e
 - Added custom Spacemacs layout for =mu4e= buffers (thanks to Benjamin Reynolds)
 - Key bindings:

layers/+lang/kivy/README.org

@@ -0,0 +1,18 @@
+#+TITLE: Kivy layer
+
+#+TAGS: dsl|layer|programming
+
+* Table of Contents                     :TOC_5_gh:noexport:
+- [[#description][Description]]
+  - [[#features][Features:]]
+- [[#install][Install]]
+
+* Description
+This layer adds support for Kivy, cross-platform GUI framework for Python.
+
+** Features:
+- Syntax Highlighting
+
+* Install
+To use this configuration layer, add it to your =~/.spacemacs=.
+You will need to add =kivy= to the existing =dotspacemacs-configuration-layers= list in this file.

layers/+lang/kivy/packages.el

@@ -0,0 +1,27 @@
+;;; packages.el --- kivy layer packages file for Spacemacs.
+;;
+;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
+;;
+;; Author: Ryota Kayanuma <picosushi12@gmail.com>
+;; URL: https://github.com/syl20bnr/spacemacs
+;;
+;; This file is not part of GNU Emacs.
+;;
+;;; License: GPLv3
+
+
+(defconst kivy-packages
+  '(
+    kivy-mode
+    )
+  "The list of Lisp packages required by the kivy layer.")
+
+(defun kivy/init-kivy-mode ()
+  (use-package kivy-mode
+    :defer t
+    :init
+    (progn
+      ;; config goes here.
+      )))
+
+;;; packages.el ends here

layers/+lang/major-modes/README.org

@@ -19,7 +19,6 @@ This layer adds a number of packages for less common languages and major modes.
   - Android Logcat (not associated with any file types by default)
   - Gentoo ebuilds
   - Hoon
-  - Kivy
   - MATLAB
   - QML
   - OpenScad

layers/+lang/major-modes/packages.el

@@ -14,7 +14,6 @@
         arduino-mode
         (ebuild-mode :location (recipe :fetcher github :repo "emacsmirror/ebuild-mode"))
         (hoon-mode :location (recipe :fetcher github :repo "urbit/hoon-mode.el"))
-        kivy-mode
         (logcat :location (recipe :fetcher github :repo "dcolascione/logcat-mode"))
         matlab-mode
         pkgbuild-mode
@@ -46,8 +45,6 @@
   (use-package logcat
     :commands (logcat logcat-mode)))
 
-(defun major-modes/init-kivy-mode ())
-
 (defun major-modes/init-matlab-mode ()
   (use-package matlab-mode
     :defer t