Issue #1234, #2058 - Rewrite log facility, improving thread implementation

src/plugin/PluginSystem.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "PluginStdAfx.h"
 #include "PluginSystem.h"
-#include "PluginClientBase.h"
 #include <array>
 
 std::wstring GetBrowserLanguage()
 {
   LANGID lcid = GetUserDefaultLangID();
   std::wstring lang;
   // According to http://msdn.microsoft.com/en-us/library/windows/desktop/dd373848(v=vs.85).aspx
   // The maximum number of characters allowed for this string is nine, including a terminating null character.
   {
     std::array<wchar_t, 9> localeLanguage;
@@ skipping 15 matching lines @@
     {
       DEBUG_ERROR_LOG(::GetLastError(), PLUGIN_ERROR_SYSINFO, PLUGIN_ERROR_SYSINFO_BROWSER_LANGUAGE, "System::GetBrowserLang - failed to retrieve country");
     }
     else
     {
       lang += localeCountry.data();
     }
   }
   return lang;
 }