Update to ZDoom r1747:

- Added A_Mushroom compatibility option for Dehacked.
- Added Gez's submission for interhubamount DECORATE property.
- Fixed: The big endian version of PalEntry did not add the DWORD d field.
- Fixed: TObjPtr did not use a union to map its 2 pointers together.
- Added a compatibility mode for A_Mushroom. For DECORATE it is an additional
  parameter but to force it for Dehacked mods some minor hacks using the
  Misc1 variable were needed.
- Moved the terget->velz assignment to the end of A_VileAttack to remove the
  influence of vertical thrust from the radius attack, since ZDoom does
  explosions in three dimensions, but Doom only did it in two.
- Fixed: The last three parameters to A_VileAttack had their references off
  by one. Most notably as a result, the blast radius was used as the thrust,
  so it sent you flying far faster than it should have.
- Restored the reactiontime countdown for A_SpawnFly, since some Dehacked
  mod could conceivable rely on it. The deadline is now kept in special2
  and used in preference as long as it is non-zero.
- Removed -fno-strict-aliasing from the GCC flags for ZDoom and fixed the
  issues that caused its inclusion. Is an optimized GCC build any faster
  for being able to use strict aliasing rules? I dunno. It's still slower
  than a VC++ build.
  
  I did run into two cases where TAutoSegIterator caused intractable problems
  with breaking strict aliasing rules, so I removed the templating from it,
  and the caller is now responsible for casting the probe value from void *.

- Removed #include "autosegs.h" from several files that did not need it
  (in particular, dobject.h when not compiling with VC++).
- gdtoa now performs all type aliasing through unions. -Wall has been added
  to the GCC flags for the library to help verify this.
- Changed A_SpawnFly to do nothing if reactiontime is 0. Reactiontime was
  originally a counter, so if it started at 0, A_SpawnFly would effectively 
  never spawn anything. Fixes Dehacked patches that use A_SpawnSound to
  play a sound without shooting boss cubes, since it also calls A_SpawnFly.
- Joystick devices now send key up events for any buttons that are held
  down when they are destroyed.
- Changed the joystick enable-y menu items to be nonrepeatable so that you
  can't create several device scans per second. Changing them with a
  controller is also disabled so that you can't, for example, toggle XInput
  support using an XInput controller and have things go haywire when the
  game receives an infinite number of key down events when the controller
  is reinitialized with the other input system.
- Changed menu input to use a consolidated set of buttons, so most menus
  can be navigated with a controller as well as a keyboard.
- Changed the way that X/Y analog axes are converted to digital axes.
  Previously, this was done by checking if each axis was outside its deadzone.
  Now they are checked together based on their angle, so straight up/down/
  left/right are much easier to achieve.

git-svn-id: http://mancubus.net/svn/hosted/gzdoom/trunk@406 b0f79afe-0144-0410-b225-9a4edf0717df

src/svnrevision.h

@@ -3,5 +3,5 @@
 // This file was automatically generated by the
 // updaterevision tool. Do not edit by hand.
 
-#define ZD_SVN_REVISION_STRING "1734"
-#define ZD_SVN_REVISION_NUMBER 1734
+#define ZD_SVN_REVISION_STRING "1747"
+#define ZD_SVN_REVISION_NUMBER 1747