- Check the actual debug extension instead of checking GL 4.0 support;
   it appears that despite having GL 4.0 support, AMD does not implement
   the standard debug extensions even when the *_CONTEXT_DEBUG_BIT_ARB
   flag is set on the context.

 - Also, fixed a place where spaces where used for indents instead of a
   tab.

 - Removed the dependency on windows.h for windows.  I feel it's an
   unnecessarily large dependency to have to add to all source files
   when the only thing that's needed to make the windows version compile
   the debug functions is just the __stdcall call convention keyword.

   On top of increasing compile time due to the large number of headers
   it includes from all the windows API headers, it also adds a lot of
   potential name conflicts, as I was getting a number of name conflicts
   for lots of names like near/far, which were used in old legacy 16bit
   windows code.

Various Changes to OpenGL intialization

 - Made is so that libobs is now marked as a dependency for the main
   application project 'obs'.

Revert "Merge pull request #19 from asgeirom/master"

I also fixed autoconf to find wxWidgets 2.9 without user intervention
Removed unused code and added more organization

This reverts commit 27ccb094, reversing
changes made to b7eccedf.

 - When a scene is created it now is automatically selected and switched
   to.

fixes a deadlock in obs_free_video/obs_video_thread where
video_output_stop would signal the update event before obs_video_thread
enters video_output_wait (the thread calling obs_free_video would
block on pthread_join and obs_video_thread would block on
pthread_cond_wait)

 - Added an extra comment regarding source removal

 - Made is so that when a scene item is removed from the sources list
   box, it removes the item based upon the GetClientData rather than by
   its string name.  This is done because there may be duplicate sources
   in a particular scene, and it's important to remove the right one.

 - When the remove source tool icon is clicked, it will now remove the
   source from the scene.

 - Fixed a bug where the scene item removal callback would add the scene
   item to the list instead of removing it.

 - Changed AddSourcePopup to AddSourcePopupMenu.  Name actually confused
   me once despite being the writer, so it was clearly a bad name.

  Sources can now be added to scenes via user interface.  It's a little
convoluted because everything has to work through OBS signals to ensure
that plugins/etc can modify the scenes/sources exernally.

  Also, when switching scenes, it will properly list sources for the
scene you changed to.

  The WX_UTF8 macro is primarily for convenience so you can input a
UTF-8 string into a wxWidgets function without having to do
wxString(string, wxConvUTF8) each time.

  Scenes will now signal via their source when an item has been added
or removed from them.

  "add" - Item added to the scene.
  Parameters:  "scene": Scene that the item was added to.
               "item":  Item that was added.

  "remove" - Item removed from the scene.
  Parameters:  "scene": Scene that the item was removed from.
               "item":  Item that was removed.

  When using signal callbacks, there is rarely a need to check to see if
the callback paramters are actually validl; in those cases, if they are
invalid, then the signal is being used incorrectly.  The calldata_get*
functions are meant to be used more for when using dynamic function
calls rather than when using signals.  The calldata_get* functions made
it so that you have to declare your varaibles, and then call that
function to assign that value to those variables, which was slightly
annoying to constantly have to do over and over.

  Therefore I created a few extra functions for returning the value
without having to check for validity.  Although you would think this
would be an issue for maintaining, keep in mind that these functions
return base types.  Admittedly, these functions are merely for
convenience.

Adding <linux/time.h> for CLOCK_REALTIME define.

Fixed the location glewExperimental was being set to just before glewInit() (where it should be).

Fix previous commit..

1. We no longer hardcode a 3.2 profile. It chooses the latest profile that fits out description.
2. I added three tables and macros to help with the offsets compared to the variables to help reading. Read comments for more info.
3. I added glewExperimental being set. What a dumb "feature". It doesn't help anything...

fix check_path not using path variable

Don't close module if opening failed during graphics initialization

Fixed memory leak by calling gl_windowinfo_destroy in platform destruction.

GLX Implementation along with appropriate autotools changes

I added gl-x11 which allows compatibility with X11 (Xlib-based) and GLX.
I also added various functions to handle file finding based on FHS.
Various changes to autotools to both install files correctly and to configure correctly.

make scene items use linked list rather than array (containers are a bad habit), add a few functions for getting scene item information, also use a mutex to prevent race conditions when using the linked list