Include scenario on distribution package and add proteus as test dependency

issue8404

setup.py

@@ -51,6 +51,7 @@ for dep in info.get('depends', []):
         requires.append(get_require_version('trytond_%s' % dep))
 requires.append(get_require_version('trytond'))
 
+tests_require = [get_require_version('proteus')]
 dependency_links = []
 if minor_version % 2:
     dependency_links.append('https://trydevpi.tryton.org/')
@@ -78,7 +79,7 @@ setup(name=name,
         ),
     package_data={
         'trytond.modules.stock_supply_forecast': (info.get('xml', [])
-            + ['tryton.cfg', 'locale/*.po']),
+            + ['tryton.cfg', 'locale/*.po', 'tests/*.rst']),
         },
     classifiers=[
         'Development Status :: 5 - Production/Stable',
@@ -127,4 +128,5 @@ setup(name=name,
     """,
     test_suite='tests',
     test_loader='trytond.test_loader:Loader',
+    tests_require=tests_require,
     )