sover should be bumped when symbols are removed

The following is a list of changes in symbols from 0.31 to 0.32. Note the many symbol removals. These are probably all validly things that should not have been part of the public interface, but nevertheless they are part of the ABI, and as such removals like this should really cause the sover to get bumped from 2 to 3, no?

=== modified file 'debian/libmemcached2.symbols'
--- debian/libmemcached2.symbols 2009-07-14 19:35:23 +0000
+++ debian/libmemcached2.symbols 2009-09-16 08:15:38 +0000
@@ -32,20 +32,20 @@
  memcached_get_user_data@libmemcached_2 0.31
  memcached_increment@libmemcached_2 0.31
  memcached_increment_with_initial@libmemcached_2 0.31
- memcached_io_close@libmemcached_2 0.31
- memcached_io_get_readable_server@libmemcached_2 0.31
- memcached_io_init_udp_header@libmemcached_2 0.31
- memcached_io_read@libmemcached_2 0.31
- memcached_io_readline@libmemcached_2 0.31
- memcached_io_reset@libmemcached_2 0.31
- memcached_io_write@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_io_close@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_io_get_readable_server@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_io_init_udp_header@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_io_read@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_io_readline@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_io_reset@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_io_write@libmemcached_2 0.31
  memcached_lib_version@libmemcached_2 0.31
  memcached_mget@libmemcached_2 0.31
  memcached_mget_by_key@libmemcached_2 0.31
  memcached_prepend@libmemcached_2 0.31
  memcached_prepend_by_key@libmemcached_2 0.31
  memcached_quit@libmemcached_2 0.31
- memcached_read_one_response@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_read_one_response@libmemcached_2 0.31
  memcached_replace@libmemcached_2 0.31
  memcached_replace_by_key@libmemcached_2 0.31
  memcached_result_create@libmemcached_2 0.31
@@ -54,7 +54,7 @@
  memcached_result_reset@libmemcached_2 0.31
  memcached_result_set_value@libmemcached_2 0.31
  memcached_result_value@libmemcached_2 0.31
- memcached_safe_read@libmemcached_2 0.31
+#MISSING: 0.32-1# memcached_safe_read@libmemcached_2 0.31
  memcached_server_add@libmemcached_2 0.31
  memcached_server_add_udp@libmemcached_2 0.31
  memcached_server_add_udp_with_weight@libmemcached_2 0.31
@@ -66,6 +66,8 @@
  memcached_server_create@libmemcached_2 0.31
  memcached_server_create_with@libmemcached_2 0.31
  memcached_server_cursor@libmemcached_2 0.31
+ memcached_server_error@libmemcached_2 0.32
+ memcached_server_error_reset@libmemcached_2 0.32
  memcached_server_free@libmemcached_2 0.31
  memcached_server_list_append@libmemcached_2 0.31
  memcached_server_list_append_with_weight@libmemcached_2 0.31
@@ -94,7 +96,7 @@
  memcached_verbosity@libmemcached_2 0.31
  memcached_version@libmemcached_2 0.31
  run_distribution@libmemcached_2 0.31
- update_continuum@libmemcached_2 0.31
+#MISSING: 0.32-1# update_continuum@libmemcached_2 0.31
 libmemcachedutil.so.0 libmemcached2 #MINVER#
  libmemcachedutil_0@libmemcachedutil_0 0.31
  memcached_pool_create@libmemcachedutil_0 0.31