debian: update packaging for new soname

we need
   - a new changelog stanza, because the symbols files need a new version
   - s/libnotmuch1/libnotmuch2/ everywhere
   - update symbols file, s/.so.1/.so.2/, and bump minimum versions on changed
     symbols (although the latter is just documentation)

debian/changelog

@@ -1,3 +1,11 @@
+notmuch (0.9~rc2-1) experimental; urgency=low
+
+  * Upstream release candidate
+  * New SONAME for libnotmuch because of changes to
+    notmuch_database_find_message*
+
+ -- David Bremner <bremner@debian.org>  Tue, 04 Oct 2011 13:59:15 -0300
+
 notmuch (0.9~rc1-1) experimental; urgency=low
 
   * Upstream release candidate

debian/control

@@ -15,7 +15,7 @@ Dm-Upload-Allowed: yes
 
 Package: notmuch
 Architecture: any
-Depends: libnotmuch1 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends}
+Depends: libnotmuch2 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends}
 Recommends: notmuch-emacs | notmuch-vim
 Description: thread-based email index, search and tagging
  Notmuch is a system for indexing, searching, reading, and tagging
@@ -25,7 +25,7 @@ Description: thread-based email index, search and tagging
  .
  This package contains the notmuch command-line interface
 
-Package: libnotmuch1
+Package: libnotmuch2
 Section: libs
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
@@ -41,7 +41,7 @@ Description: thread-based email index, search and tagging (runtime)
 Package: libnotmuch-dev
 Section: libdevel
 Architecture: any
-Depends: ${misc:Depends}, libnotmuch1 (= ${binary:Version})
+Depends: ${misc:Depends}, libnotmuch2 (= ${binary:Version})
 Description: thread-based email index, search and tagging (development)
  Notmuch is a system for indexing, searching, reading, and tagging
  large collections of email messages in maildir or mh format. It uses
@@ -54,7 +54,7 @@ Description: thread-based email index, search and tagging (development)
 Package: python-notmuch
 Architecture: all
 Section: python
-Depends: ${misc:Depends}, ${python:Depends}, libnotmuch1
+Depends: ${misc:Depends}, ${python:Depends}, libnotmuch2
 Description: python interface to the notmuch mail search and index library
  Notmuch is a system for indexing, searching, reading, and tagging
  large collections of email messages in maildir or mh format. It uses

debian/libnotmuch2.symbols

@@ -1,11 +1,11 @@
-libnotmuch.so.1 libnotmuch1 #MINVER#
+libnotmuch.so.2 libnotmuch2 #MINVER#
  notmuch_database_add_message@Base 0.3
  notmuch_database_begin_atomic@Base 0.9~rc1
  notmuch_database_close@Base 0.3
  notmuch_database_create@Base 0.3
  notmuch_database_end_atomic@Base 0.9~rc1
- notmuch_database_find_message@Base 0.3
- notmuch_database_find_message_by_filename@Base 0.9~rc1
+ notmuch_database_find_message@Base 0.9~rc2
+ notmuch_database_find_message_by_filename@Base 0.9~rc2
  notmuch_database_get_all_tags@Base 0.3
  notmuch_database_get_directory@Base 0.3
  notmuch_database_get_path@Base 0.3