[gobject-introspection] build: require Python 2.6 from now on

[Dieter Verfaillie <dieterv src gnome org>]

commit eaca1e68664c35981949a9b852936c3fd4d0fc82
Author: Dieter Verfaillie <dieterv optionexplicit be>
Date:   Mon Apr 22 23:47:17 2013 +0200

    build: require Python 2.6 from now on
    
    Nobody is really known to still use g-i with python 2.5, support
    for 2.5 gets broken every now and then in the tree because nobody
    is paying much attention any more so just drop it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=698617

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index fad88bc..14fc42f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -247,7 +247,7 @@ AC_CHECK_FUNCS([memchr strchr strspn strstr strtol strtoull])
 AC_CHECK_FUNCS([backtrace backtrace_symbols])
 
 # Python
-AM_PATH_PYTHON([2.5])
+AM_PATH_PYTHON([2.6])
 case "$host" in
 *-*-mingw*)
        # Change backslashes to forward slashes in pyexecdir to avoid