Update cookbooks and add wordpress cookbook

cookbooks/postgresql/files/default/tests/minitest/apt_pgdg_postgresql_test.rb

@@ -28,12 +28,12 @@ describe 'postgresql::apt_pgdg_postgresql' do
     file("/etc/apt/sources.list.d/apt.postgresql.org.list").must_exist
   end
 
-  it 'installs postgresql-client-9.3' do
-    package("postgresql-client-9.3").must_be_installed
+  it 'installs postgresql-client-9.4' do
+    package("postgresql-client-9.4").must_be_installed
   end
 
-  it 'makes psql version 9.3 available' do
+  it 'makes psql version 9.4 available' do
     psql = shell_out("psql --version")
-    assert psql.stdout.include?("psql (PostgreSQL) 9.3")
+    assert psql.stdout.include?("psql (PostgreSQL) 9.4")
   end
 end

cookbooks/postgresql/files/default/tests/minitest/server_test.rb

@@ -30,6 +30,7 @@ describe 'postgresql::server' do
   end
 
   it 'can connect to postgresql' do
+    Gem.clear_paths
     require 'pg'
     conn = PG::Connection.new(
                                :host => 'localhost',