C++11 patchset 9: move hardcoded init parameters to class definitions (part 1) (#5984)

* C++11 patchset 9: move hardcoded init parameters to class definitions

C++11 introduced the possibility to define the default values directly in class definitions, do it on current code

Also remove some unused attributes

* CollisionInfo::bouncy
* collisionMoveResult::collides_xy
* collisionMoveResult::standing_on_unloaded
* Clouds::speed

* More constructor cleanups + some variables removal

* remove only write guiFormSpecMenu::m_old_tooltip
* move header included inside defintions in genericobject.h
* remove some unused since years exception classes
* remove unused & empty debug_stacks_init
* remove unused & empty content_nodemeta_serialize_legacy
* remove forgotten useless bool (bouncy) in collision.cpp code

src/guiChatConsole.cpp

@@ -54,22 +54,7 @@ GUIChatConsole::GUIChatConsole(
 	m_chat_backend(backend),
 	m_client(client),
 	m_menumgr(menumgr),
-	m_screensize(v2u32(0,0)),
-	m_animate_time_old(porting::getTimeMs()),
-	m_open(false),
-	m_close_on_enter(false),
-	m_height(0),
-	m_desired_height(0),
-	m_desired_height_fraction(0.0),
-	m_height_speed(5.0),
-	m_open_inhibited(0),
-	m_cursor_blink(0.0),
-	m_cursor_blink_speed(0.0),
-	m_cursor_height(0.0),
-	m_background(NULL),
-	m_background_color(255, 0, 0, 0),
-	m_font(NULL),
-	m_fontsize(0, 0)
+	m_animate_time_old(porting::getTimeMs())
 {
 	// load background settings
 	s32 console_alpha = g_settings->getS32("console_alpha");