Fix Since tags

Fixes https://github.com/behdad/harfbuzz/issues/103

src/hb-buffer.cc

diff --git a/src/hb-buffer.cc b/src/hb-buffer.cc
index 420da82..50710dd 100644
--- a/src/hb-buffer.cc
+++ b/src/hb-buffer.cc
@@ -704,7 +704,7 @@
  *
  * Return value: (transfer full)
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_buffer_t *
 hb_buffer_create (void)
@@ -726,7 +726,7 @@
  *
  * Return value: (transfer full):
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_buffer_t *
 hb_buffer_get_empty (void)
@@ -759,7 +759,7 @@
  *
  * Return value: (transfer full):
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_buffer_t *
 hb_buffer_reference (hb_buffer_t *buffer)
@@ -773,7 +773,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_destroy (hb_buffer_t *buffer)
@@ -800,7 +800,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_bool_t
 hb_buffer_set_user_data (hb_buffer_t        *buffer,
@@ -821,7 +821,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void *
 hb_buffer_get_user_data (hb_buffer_t        *buffer,
@@ -871,7 +871,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_set_unicode_funcs (hb_buffer_t        *buffer,
@@ -897,7 +897,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_unicode_funcs_t *
 hb_buffer_get_unicode_funcs (hb_buffer_t        *buffer)
@@ -912,7 +912,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_set_direction (hb_buffer_t    *buffer,
@@ -933,7 +933,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_direction_t
 hb_buffer_get_direction (hb_buffer_t    *buffer)
@@ -948,7 +948,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_set_script (hb_buffer_t *buffer,
@@ -968,7 +968,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_script_t
 hb_buffer_get_script (hb_buffer_t *buffer)
@@ -983,7 +983,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_set_language (hb_buffer_t   *buffer,
@@ -1003,7 +1003,7 @@
  *
  * Return value: (transfer none):
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_language_t
 hb_buffer_get_language (hb_buffer_t *buffer)
@@ -1160,7 +1160,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_reset (hb_buffer_t *buffer)
@@ -1191,7 +1191,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_bool_t
 hb_buffer_pre_allocate (hb_buffer_t *buffer, unsigned int size)
@@ -1207,7 +1207,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_bool_t
 hb_buffer_allocation_successful (hb_buffer_t  *buffer)
@@ -1223,7 +1223,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.7
  **/
 void
 hb_buffer_add (hb_buffer_t    *buffer,
@@ -1243,7 +1243,7 @@
  *
  * Return value: 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_bool_t
 hb_buffer_set_length (hb_buffer_t  *buffer,
@@ -1282,7 +1282,7 @@
  *
  * Return value: buffer length.
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 unsigned int
 hb_buffer_get_length (hb_buffer_t *buffer)
@@ -1300,7 +1300,7 @@
  *
  * Return value: (transfer none) (array length=length): buffer glyph information array.
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_glyph_info_t *
 hb_buffer_get_glyph_infos (hb_buffer_t  *buffer,
@@ -1322,7 +1322,7 @@
  *
  * Return value: (transfer none) (array length=length): buffer glyph position array.
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 hb_glyph_position_t *
 hb_buffer_get_glyph_positions (hb_buffer_t  *buffer,
@@ -1343,7 +1343,7 @@
  *
  * Reverses buffer contents.
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_reverse (hb_buffer_t *buffer)
@@ -1357,9 +1357,9 @@
  * @start: start index.
  * @end: end index.
  *
- * Reverses buffer contents between  start to end.
+ * Reverses buffer contents between start to end.
  *
- * Since: 1.0
+ * Since: 0.9.41
  **/
 void
 hb_buffer_reverse_range (hb_buffer_t *buffer,
@@ -1376,7 +1376,7 @@
  * reversed, then each cluster (consecutive items having the
  * same cluster number) are reversed again.
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_reverse_clusters (hb_buffer_t *buffer)
@@ -1493,7 +1493,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_add_utf8 (hb_buffer_t  *buffer,
@@ -1515,7 +1515,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_add_utf16 (hb_buffer_t    *buffer,
@@ -1537,7 +1537,7 @@
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_buffer_add_utf32 (hb_buffer_t    *buffer,