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

- fix silences handling

   module "mosaic-bridge".

* modules/gui/wxwindows: disable last commit for now since we don't seem to be able to retrieve the right size values.

(Trivial patch)

* src/misc/configuration.c, ALL: support for auto-saveable config options (saved automatically on exit).

code cleaning

  - 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

* modules/access/v4l/v4l.c: fixed l10n-strings (we use American English in l10n-strings)
* de.po: first update to the German translation

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

* Patch by Christophe Mutricy : fix M3U export

Thanks to both !

Update the info displayed in the playlist when you change the play mode in the menu (had this ever worked ?)

* Fix two cases where p_playlist->status.p_item was NULL (this fixes last issues with adding shoutcast SD to OSX playlist)

* different way to remember fullscreen state.
* update the playlist on item-append and item-deleted calls.
* fixed video-on-top with opengl vouts on OSX.

* intf.* : try to restore an a bit more intelligent behavior for the playlist toggle button (remeber previous state, for instance)
* misc.* : get rid of unused code.