[banshee] build: require NUnit 2.5, for real

[Andrés Aragoneses <aaragoneses src gnome org>]

commit 64b1f4273cafb148a28d0e1c1c200eff76d3b0de
Author: Andrés G. Aragoneses <knocte gmail com>
Date:   Tue Jan 7 01:38:40 2014 +0100

    build: require NUnit 2.5, for real
    
    Oops, the fundamental version change was missed in previous
    big commit, which explains the rationale:
    
    https://git.gnome.org/browse/banshee/commit/?id=52166da19192db39f8846c7398b512347173e37e

 build/m4/shamrock/nunit.m4 |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/build/m4/shamrock/nunit.m4 b/build/m4/shamrock/nunit.m4
index b8bfa53..a52a7cb 100644
--- a/build/m4/shamrock/nunit.m4
+++ b/build/m4/shamrock/nunit.m4
@@ -1,6 +1,6 @@
 AC_DEFUN([SHAMROCK_CHECK_NUNIT],
 [
-       NUNIT_REQUIRED=2.4.7
+       NUNIT_REQUIRED=2.5
 
        AC_ARG_ENABLE(tests, AC_HELP_STRING([--enable-tests], [Enable NUnit tests]),
                enable_tests=$enableval, enable_tests="no")