Header file clean up and warning fixes

- Mostly this cleans up the #includes and header files in the python project.
- Warning fixes are mostly casting issues and misc fixes. General warning clean up.
- #include Python.h MUST come as the first include to avoid the POSIX redefine warning in the unix makefiles
- fno-strict-aliasing flag added to makefile to fix a unavoidable type punning warning in types.c

source/blender/python/api2_2x/Build.c

@@ -29,20 +29,15 @@
  *
  * ***** END GPL/BL DUAL LICENSE BLOCK *****
  */
+ 
+#include "Build.h" /*This must come first */
 
-#include "Build.h"
-#include "Effect.h"
+#include "DNA_object_types.h"
+#include "BKE_effect.h"
+#include "BKE_global.h"
+#include "BKE_main.h"
 #include "gen_utils.h"
 
-#include <BLI_arithb.h>
-#include <BLI_blenlib.h>
-#include <BKE_main.h>
-#include <BKE_global.h>
-#include <BKE_object.h>
-#include <BKE_library.h>
-
-#include <stdio.h>
-
 /* prototypes */
 PyObject *Build_Init( void );
 
@@ -134,7 +129,6 @@ PyObject *M_Build_New( PyObject * self, PyObject * args )
 	pyeffect->effect = bleffect;
 
 	return ( PyObject * ) pyeffect;
-	return 0;
 }
 
 /*****************************************************************************/