Bump the version number on the library

configure.in

@@ -14,9 +14,9 @@ dnl Set various version strings - taken gratefully from the GTk sources
 #
 SDL_MAJOR_VERSION=1
 SDL_MINOR_VERSION=2
-SDL_MICRO_VERSION=3
-SDL_INTERFACE_AGE=3
-SDL_BINARY_AGE=3
+SDL_MICRO_VERSION=4
+SDL_INTERFACE_AGE=4
+SDL_BINARY_AGE=4
 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
 
 AC_SUBST(SDL_MAJOR_VERSION)

include/SDL_version.h

@@ -42,7 +42,7 @@ extern "C" {
 */
 #define SDL_MAJOR_VERSION	1
 #define SDL_MINOR_VERSION	2
-#define SDL_PATCHLEVEL		3
+#define SDL_PATCHLEVEL		4
 
 typedef struct {
 	Uint8 major;