Bump up version and update Changes

Author: syohex

Changes

@@ -1,5 +1,8 @@
 Revision history for go-eldoc.el
 
+Version 0.22 2015/02/23 syohex
+  - Update minimum go-mode version
+
 Version 0.21 2014/12/19 syohex
   - Fix error when highlights return value of function
     which has map type arguments(#26)

go-eldoc.el

@@ -4,7 +4,7 @@
 
 ;; Author: Syohei YOSHIDA <syohex@gmail.com>
 ;; URL: https://github.com/syohex/emacs-go-eldoc
-;; Version: 0.21
+;; Version: 0.22
 ;; Package-Requires: ((go-mode "1.0.0") (cl-lib "0.5"))
 
 ;; This program is free software; you can redistribute it and/or modify