Add dev SDL 1.2.15+ framework for Mac only

Note: the last commit is from 07.09.2016:
http://hg.libsdl.org/SDL/changeset/0c1a8b0429a9

source/xcode/Frameworks/SDL.framework/Versions/A/Headers/SDL_config_macosx.h

@@ -133,6 +133,7 @@
 #define SDL_VIDEO_DRIVER_X11_XME 1
 #define SDL_VIDEO_DRIVER_X11_XRANDR 1
 #define SDL_VIDEO_DRIVER_X11_XV 1
+#define SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32 1
 
 /* Enable OpenGL support */
 #define SDL_VIDEO_OPENGL	1

source/xcode/Frameworks/SDL.framework/Versions/A/Headers/SDL_endian.h

@@ -86,10 +86,10 @@ static __inline__ Uint16 SDL_Swap16(Uint16 x)
 #elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
 static __inline__ Uint16 SDL_Swap16(Uint16 x)
 {
-	Uint16 result;
+	int result;
 
 	__asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));
-	return result;
+	return (Uint16)result;
 }
 #elif defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__))
 static __inline__ Uint16 SDL_Swap16(Uint16 x)

source/xcode/Frameworks/SDL.framework/Versions/A/Resources/Info.plist

@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
 	<key>BuildMachineOSBuild</key>
-	<string>11C74</string>
+	<string>14A389</string>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>English</string>
 	<key>CFBundleExecutable</key>
@@ -19,24 +19,24 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.2.14</string>
+	<string>1.2.15</string>
 	<key>CFBundleSignature</key>
 	<string>SDLX</string>
 	<key>CFBundleVersion</key>
-	<string>1.2.14</string>
+	<string>1.2.15</string>
 	<key>DTCompiler</key>
-	<string></string>
+	<string>com.apple.compilers.llvm.clang.1_0</string>
 	<key>DTPlatformBuild</key>
-	<string>4D502</string>
+	<string>6E35b</string>
 	<key>DTPlatformVersion</key>
 	<string>GM</string>
 	<key>DTSDKBuild</key>
-	<string>11C63</string>
+	<string>14D125</string>
 	<key>DTSDKName</key>
-	<string>macosx10.7</string>
+	<string>macosx10.10</string>
 	<key>DTXcode</key>
-	<string>0421</string>
+	<string>0640</string>
 	<key>DTXcodeBuild</key>
-	<string>4D502</string>
+	<string>6E35b</string>
 </dict>
 </plist>