Add highlighting to the use-package macro

See: https://jwiegley.github.io/use-package/

Author: Alhadis

CHANGELOG.md

@@ -9,6 +9,7 @@ This project adheres to [Semantic Versioning](http://semver.org).
 [Unpublished]
 ------------------------------------------------------------------------
 * __Added:__ Highlighting for another 30 keywords used by [`mocha.el`][]
+* __Added:__ Highlighting for the [`use-package`][] macro
 
 
 
@@ -81,3 +82,4 @@ Initial release. Adds editor commands and highlighting for Emacs Lisp.
 [2.3.3.2]: http://www.hep.by/gnu/elisp/General-Escape-Syntax.html
 [YASnippet]: http://joaotavora.github.io/yasnippet
 [`mocha.el`]: https://github.com/scottaj/mocha.el
+[`use-package`]: https://github.com/jwiegley/use-package

grammars/emacs-lisp.cson

@@ -6155,7 +6155,7 @@ repository:
 				|url-unhex-string|url-unhex|url-use-cookies--cmacro|url-use-cookies|url-user--cmacro|url-user-for-url|url-user|url-view-url|url-wait-for-string
 				|url-warn|use-cjk-char-width-table|use-completion-backward-under|use-completion-backward|use-completion-before-point|use-completion-before-separator
 				|use-completion-minibuffer-separator|use-completion-under-or-before-point|use-completion-under-point|use-default-char-width-table
-				|use-fancy-splash-screens-p|user-original-login-name|user-variable-p|utf-7-imap-post-read-conversion|utf-7-imap-pre-write-conversion
+				|use-fancy-splash-screens-p|use-package|user-original-login-name|user-variable-p|utf-7-imap-post-read-conversion|utf-7-imap-pre-write-conversion
 				|utf-7-post-read-conversion|utf-7-pre-write-conversion|utf7-decode|utf7-encode|uudecode-char-int|uudecode-decode-region-external
 				|uudecode-decode-region-internal|uudecode-decode-region|uudecode-string-to-multibyte|values-list|variable-at-point|variable-binding-locus
 				|variable-pitch-mode|vc--add-line|vc--process-sentinel|vc--read-lines|vc--remove-regexp|vc-after-save|vc-annotate|vc-backend-for-registration