[pyclutter] build: Add tests to the distribution

[Emmanuele Bassi <ebassi src gnome org>]

commit c8285c327eeb9dbc1b854a0a19f051d190364225
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue May 5 15:12:03 2015 +0100

    build: Add tests to the distribution
    
    Otherwise the `dist` target will fail.

 tests/Makefile.am |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ee132c9..42de4e5 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -9,3 +9,5 @@ TESTS_ENVIRONMENT = \
        TESTS_BUILDDIR=$(builddir)
 
 check_SCRIPTS = run-tests.py
+
+EXTRA_DIST = run-tests.py $(test_files)