down but took me 2 hours to understand) Closes #106

mute icon when sound isn't mute now). Rels #106

* modules/gui/wxwindows/interface.cpp: Fixed End hotkey + added Insert/Delete.

Patch by Greg Hazel (ghazel at gmail dot com)

* modules/gui/wxwindows: bunch of small improvements to the embedded mode + enabled saving size with --wxwin-autosize.

  - fix crash when deleting current item
  - SAP: don't store pointers
  - don't pass pointers to interface in item-appended
  - remove VIEW_SIMPLE that was confusing and bug-generating

* wx: 
  - Fix open layout
  - Fix slider behaviour, patch by Greg Hazel

  - Fix gui flickering on video size change
  - provide a no-auto-resize mode 

* Patch by Christophe Mutricy : fix M3U export

Thanks to both !

I only changed two things in the patch 
* added a check for wx2.4 that does not seem to have sizer->Detach
* commented out the wxCheckVersion in open.cpp, which broke layouting under wx2.5.3
  (what was the intended behaviour ?)

* Added core support for a sorted by genre view

* modules/gui/wxwindows/*: added subtitles options to the stream output dialog + add open directory menu to interface.

(only works if something is playing ... and we have to fix the bug where
the image doesn't get updated like for the play/pause button)

* wxwindows: systray integration, with a basic popup menu, tested under
  WinXP and Gnome (introduces two new options, wxwin-taskbar and
  wxwin-systray).

  The icon looks ok under windows but not so good with some gnome-panel
  sizes.

Change some message severities

* modules/gui/wxwindows: MSVC fixes for the wxwindows interface plugin. Patch by Steve Lhomme (steve dot lhomme at free dot fr) + modifications by me.

  - Menu, Previous Chapter, Next Chapter for DVDs
  - Previous Track, Next Track for CDs

Fix autoswitching to category view

    + Use PACKAGE_NAME instead of PACKAGE.
  * modules/codec/ffmpeg/ffmpeg.c:
    + This module does not require AltiVec for now.

Removed the old streaming wizard\nSplitted the interface file into interface+extrapanel\nExtrapanel is now a notebook\nReworked the video extrapanel (removed ratio,added filters)\nImplemented a graphical equaliwer