[libvtemm] Update for 0.23.1.

[Krzesimir Nowak <krnowak src gnome org>]

commit 8f7a74862545d0fc30419b2cfc6a268b0e3d3303
Author: Krzesimir Nowak <qdlacz gmail com>
Date:   Thu Jan 14 09:51:59 2010 +0100

    Update for 0.23.1.
    
    * NEWS: Updated.
    * README: Updated dependencies.
    * configure.ac: Bumped so version. Also added a spoiler about
    updating it, because I always forget what to change.

 NEWS         |    7 +++++++
 README       |   11 ++++++-----
 configure.ac |    8 +++++++-
 3 files changed, 20 insertions(+), 6 deletions(-)
---
diff --git a/NEWS b/NEWS
index 05933b2..575f850 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+0.23.1:
+
+* Documentation: added main page and documented enumerations.
+  (Krzesimir Nowak)
+* Terminal: added new method - write_contents(). This added dependency on giomm.
+  (Krzesimir Nowak)
+
 0.23.0:
 
 * Terminal::get_padding() method is deprecated in favor of using
diff --git a/README b/README
index b728080..fb8798a 100644
--- a/README
+++ b/README
@@ -1,11 +1,12 @@
-C++ wrapper for vte, version 0.23.0.
+C++ wrapper for vte, version 0.23.1.
 
 Current dependencies:
 - to build a library from tarball:
-  * vte >= 0.23.2
-  * glibmm >= 2.18.0
-  * pangomm >= 2.24.0
-  * gtkmm >= 2.19.2
+  * vte >= 0.23.5
+  * glibmm-2.4 >= 2.22.0
+  * pangomm-1.4 >= 2.24.0
+  * gtkmm-2.4 >= 2.19.2
+  * giomm-2.4
 - to build a documentation:
   * same as above and tools required by mm-common, that are:
     - perl
diff --git a/configure.ac b/configure.ac
index f227b66..d0d4bc4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,7 +16,13 @@ AC_ARG_VAR([ACLOCAL_FLAGS], [aclocal flags, e.g. -I <macro dir>])
 MM_PREREQ([0.8])
 MM_INIT_MODULE([libvtemm-1.2])
 
-AC_SUBST([LIBVTEMM_SO_VERSION], [10:0:1])
+# The string is of the form C:R:A.
+# - If interfaces have been changed or added, but binary compatibility has
+#   been preserved, change to C+1:0:A+1
+# - If binary compatibility has been broken (e.g. removed or changed interfaces)
+#   change to C+1:0:0
+# - If the interface is the same as the previous version, change to C:R+1:A
+AC_SUBST([LIBVTEMM_SO_VERSION], [11:0:2])
 
 # AC_DISABLE_STATIC
 # AC_LIBTOOL_WIN32_DLL