Add missing version bumps and APIchanges/Changelog entries.

Changelog

@@ -17,6 +17,7 @@ version <next>:
 - ZeroCodec decoder
 - drop support for avconv without libavfilter
 - add libavresample audio conversion library
+- audio filters support in libavfilter and avconv
 
 
 version 0.8:

doc/APIchanges

@@ -13,16 +13,30 @@ libavutil:     2011-04-18
 
 API changes, most recent first:
 
-2012-xx-xx - xxxxxxx - lavc 54.13.1
+2012-05-15 - lavfi 2.17.0
+  Add support for audio filters
+  ac71230/a2cd9be - add video/audio buffer sink in a new installed
+                    header buffersink.h
+  720c6b7 - add av_buffersrc_write_frame(), deprecate
+            av_vsrc_buffer_add_frame()
+  ab16504 - add avfilter_copy_buf_props()
+  9453c9e - add extended_data to AVFilterBuffer
+  1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
+
+2012-05-09 - lavu 51.30.0 - samplefmt.h
+  142e740 - add av_samples_copy()
+  6d7f617 - add av_samples_set_silence()
+
+2012-05-09 - a5117a2 - lavc 54.13.1
   For audio formats with fixed frame size, the last frame
   no longer needs to be padded with silence, libavcodec
   will handle this internally (effectively all encoders
   behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
 
-2012-xx-xx - xxxxxxx - lavc 54.13.0 - avcodec.h
+2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
   Add sample_rate and channel_layout fields to AVFrame.
 
-2012-xx-xx - xxxxxxx - lavr 0.0.1
+2012-05-01 - 4010d72 - lavr 0.0.1
   Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
 
 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h

libavfilter/version.h

@@ -29,8 +29,8 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  2
-#define LIBAVFILTER_VERSION_MINOR  16
-#define LIBAVFILTER_VERSION_MICRO  1
+#define LIBAVFILTER_VERSION_MINOR  17
+#define LIBAVFILTER_VERSION_MICRO  0
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \

libavutil/avutil.h

@@ -152,7 +152,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR 29
+#define LIBAVUTIL_VERSION_MINOR 30
 #define LIBAVUTIL_VERSION_MICRO  0
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \