pidgin/pidgin

Replace the manual browser opening code with gtk_show_uri_on_window

Remove the browser preference page.

replace the manual open uri code with gtk_show_uri_on_window

Testing Done:
Compiles, preference window functions properly, however talkatu doesn't handle links correctly so I couldn't test from messages or `help -> about`, but `help -> online help` worked just fine.

Reviewed at https://reviews.imfreedom.org/r/59/
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#ifndef PURPLE_PURPLE_H
#define PURPLE_PURPLE_H
/**
* SECTION:purple
* @section_id: libpurple-purple
* @short_description: <filename>purple.h</filename>
* @title: Header files and defines
*
* This file contains all the necessary preprocessor directives to include
* libpurple's headers and other preprocessor directives required for plugins
* or UIs to build. Including this file eliminates the need to directly
* include any other libpurple files.
*/
#include <glib.h>
#ifndef PURPLE_GLOBAL_HEADER_INSIDE
#define PURPLE_GLOBAL_HEADER_INSIDE
#endif
@PURPLE_H_INCLUDES@
#undef PURPLE_GLOBAL_HEADER_INSIDE
#endif /* PURPLE_PURPLE_H */