Bump major version of libavutil due to FIFO fixes.

The current API/ABI should not be considered stable yet, further ABI/API
breakage is possible without major bumps.

Originally committed as revision 17871 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffserver.c

@@ -354,7 +354,7 @@ static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
 {
     static int print_prefix = 1;
     AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
-    if (level > av_log_level)
+    if (level > av_log_get_level())
         return;
     if (print_prefix && avc)
         http_log("[%s @ %p]", avc->item_name(ptr), ptr);

libavutil/avutil.h

@@ -34,8 +34,8 @@
 #define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
 #define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
 
-#define LIBAVUTIL_VERSION_MAJOR 49
-#define LIBAVUTIL_VERSION_MINOR 15
+#define LIBAVUTIL_VERSION_MAJOR 50
+#define LIBAVUTIL_VERSION_MINOR  0
 #define LIBAVUTIL_VERSION_MICRO  0
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \