Derive from text-mode

Closes #17, #18, #27

README

@@ -7,6 +7,9 @@ RECRUITMENTS
 NAME
     yaml-mode - Simple major mode to edit YAML file for emacs
 
+REQUIREMENTS
+    Emacs 24.1
+
 SYNOPSIS
     To install, just drop this file into a directory in your
     `load-path' and (optionally) byte-compile it.  To automatically

yaml-mode.el

@@ -4,6 +4,7 @@
 
 ;; Author: Yoshiki Kurihara <clouder@gmail.com>
 ;;         Marshall T. Vandegrift <llasram@gmail.com>
+;; Package-Requires: ((emacs "24.1"))
 ;; Keywords: data yaml
 ;; Version: 0.0.12
 
@@ -213,7 +214,7 @@ that key is pressed to begin a block literal."
   (modify-syntax-entry ?\] ")[" yaml-mode-syntax-table))
 
 ;;;###autoload
-(define-derived-mode yaml-mode fundamental-mode "YAML"
+(define-derived-mode yaml-mode text-mode "YAML"
   "Simple mode to edit YAML.
 
 \\{yaml-mode-map}"