pidgin/pidgin

Replace the account-actions-changed signal with an actions-changed signal on PurpleProtocolActions

We also propagate the PurpleProtocolActions::actions-changed signal from the
PurpleProtocolManager::account-actions-changed signal if the protocol implements
the PurpleProtocolActions interface.

Testing Done:
Build the docs and ran the unit tests.

I also put a temporary action in the demo protocol plugin and called `purple_protocol_actions_changed` after the demo protocol connected. I will have another pull request that makes this a permenent action, but I want to convert the demo protocol plugin to subclass PurpleConnection before doing so as that will be accounting of everything *much* easier.

Reviewed at https://reviews.imfreedom.org/r/2168/
/* pidgin
*
* Pidgin 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
*/
#if !defined(PIDGIN_GLOBAL_HEADER_INSIDE) && !defined(PIDGIN_COMPILATION)
# error "only <pidgin.h> may be included directly"
#endif
#ifndef PIDGIN_CORE_H
#define PIDGIN_CORE_H
#include <glib.h>
#include <purple.h>
#ifdef _WIN32
# include "win32/gtkwin32dep.h"
#endif
/* change this only when we have a sane upgrade path for old prefs */
#define PIDGIN_PREFS_ROOT "/pidgin"
/* Translators may want to transliterate the name.
It is not to be translated. */
#define PIDGIN_NAME _("Pidgin")
/**
* PIDGIN_ALERT_TITLE:
*
* The title that should be used for alert dialogs.
*/
#ifndef _WIN32
# define PIDGIN_ALERT_TITLE ""
#else
# define PIDGIN_ALERT_TITLE PIDGIN_NAME
#endif
/**
* pidgin_start:
* @argc: The argc from main() (or 0 if argv is %NULL).
* @argv: The argv from main(), or %NULL.
*
* Start pidgin with the given command line arguments.
*/
int pidgin_start(int argc, char *argv[]);
#endif /* PIDGIN_CORE_H */