Update versions

_config.yml

@@ -3,14 +3,14 @@ markdown: kramdown
 highlighter: rouge
 pgroonga_version: 1.1.9
 pgroonga_release_date: 2016-11-30
-copyright_year: 2015-2016
+copyright_year: 2015-2017
 postgresql_short_version: 9.6
 postgresql_doc_base_url:
   en: https://www.postgresql.org/docs/9.6/static
-  ja: https://www.postgresql.jp/document/9.5/html
+  ja: https://www.postgresql.jp/document/9.6/html
 windows_postgresql_versions:
-  - 9.5.5-1
-  - 9.6.1-1
+  - 9.5.6-2
+  - 9.6.2-3
 exclude:
   - "Rakefile"
   - "Gemfile"