Merged r11399 from trunk to 2.2-stable (#13138)

not use htmlentities gem in rfpdf plugin.

Contributed by Jun NAITOH.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.2-stable@11400 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/plugins/rfpdf/README

@@ -10,10 +10,6 @@ A template plugin allowing the inclusion of ERB-enabled RFPDF template files.
 ==
 ==
 
-If you are using HTML, it is recommended you install:
-
-gem install -r htmlentities
-
 TCPDF Documentation located at:
 
 http://phpdocs.moodle.org/com-tecnick-tcpdf/TCPDF.html
@@ -42,4 +38,4 @@ to:
 
   pdf = TCPDF.new
 
-ENJOY!
+ENJOY!