Translations updates:

* Finnish (Antti Perkiömäki)
* Russian (Michael Pirogov)
* Chinese Traditional (shortie lo)
* Japanese (Satoru Kurashiki)
* Korean (Jongyoon Choi)
* Simplified Chinese (chaoqun zou)
* German (Thomas Löber)

Fixed zh and zh-tw encoding in PDF (chaoqun zou).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1186 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/ifpdf_helper.rb

@@ -27,13 +27,18 @@ module IfpdfHelper
     def initialize(lang)
       super()
       set_language_if_valid lang
-      case current_language
-      when :ja
+      case current_language.to_s
+      when 'ja'
         extend(PDF_Japanese)
         AddSJISFont()
         @font_for_content = 'SJIS'
         @font_for_footer = 'SJIS'
-      when :zh
+      when 'zh'
+        extend(PDF_Chinese)
+        AddGBFont()
+        @font_for_content = 'GB'
+        @font_for_footer = 'GB'
+      when 'zh-tw'
         extend(PDF_Chinese)
         AddBig5Font()
         @font_for_content = 'Big5'