EADK (StdLib, AppPkg, StdLibPrivateInternalFiles): Python Beta Release.

Clean up and clearly differentiate required and optional items in configuration files.
Enable the system command and synchronize configuration options between all CPU architectures.
Replace the UEFI_ENV macro with UEFI_C_SOURCE to align with Linux and Posix conventions.
Update copyrights and versions and make minor cosmetic enhancements to files.
Fix compiler-specific build errors.
Add Python-specific ReadMe file.

Signed-off-by: darylm503
Reviewed-by: geekboy15a
Reviewed-by: jljusten
Reviewed-by: leegrosenbaum


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13119 6f19259b-4bc3-4df7-8a09-765794883524

AppPkg/Applications/Python/PyMod-2.7.2/Include/osdefs.h

@@ -1,7 +1,7 @@
 /** @file
     Operating system dependencies.
 
-    Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+    Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR>
     This program and the accompanying materials are licensed and made available under
     the terms and conditions of the BSD License that accompanies this distribution.
     The full text of the license may be found at
@@ -18,7 +18,7 @@ extern "C" {
 
 
 /* Mod by chrish: QNX has WATCOM, but isn't DOS */
-#if !defined(__QNX__) && !defined(UEFI_ENV)
+#if !defined(__QNX__) && !defined(UEFI_C_SOURCE)
 #if defined(MS_WINDOWS) || defined(__BORLANDC__) || defined(__WATCOMC__) || defined(__DJGPP__) || defined(PYOS_OS2)
 #if defined(PYOS_OS2) && defined(PYCC_GCC)
 #define MAXPATHLEN 260
@@ -57,7 +57,7 @@ extern "C" {
 
 /* Search path entry delimiter */
 #ifndef DELIM
-  #ifdef  UEFI_ENV
+  #ifdef  UEFI_C_SOURCE
     #define DELIM   ';'
     #define DELIM_STR   ";"
   #else