Change keystone_default_role to _member_

Previously both Member & _member_ roles were created, which lead to
confision.
Member role is not created anymore as of [1].

[1] https://review.openstack.org/#q,If4ed1c2c72ca67acad7b70651e68ff7ce68157dd,n,z

Change-Id: I933236c2c257b65a1027da07a760c8b4d10618cc
(cherry picked from commit 45a60830d80172814d3b44c26d26566d922f0b2d)

manifests/init.pp

@@ -42,7 +42,7 @@
 #    (optional) Scheme of the Keystone service. Defaults to 'http'.
 #
 #  [*keystone_default_role*]
-#    (optional) Default Keystone role for new users. Defaults to 'Member'.
+#    (optional) Default Keystone role for new users. Defaults to '_member_'.
 #
 #  [*django_debug*]
 #    (optional) Enable or disable Django debugging. Defaults to 'False'.
@@ -77,7 +77,7 @@
   $keystone_host           = '127.0.0.1',
   $keystone_port           = 5000,
   $keystone_scheme         = 'http',
-  $keystone_default_role   = 'Member',
+  $keystone_default_role   = '_member_',
   $django_debug            = 'False',
   $api_result_limit        = 1000,
   $log_level               = 'DEBUG',

spec/classes/horizon_init_spec.rb

@@ -79,7 +79,7 @@
           "SECRET_KEY = 'elj1IWiLoWHgcyYxFVLj7cM5rGOOxWl0'",
           'OPENSTACK_HOST = "127.0.0.1"',
           'OPENSTACK_KEYSTONE_URL = "http://%s:5000/v2.0" % OPENSTACK_HOST',
-          'OPENSTACK_KEYSTONE_DEFAULT_ROLE = "Member"',
+          'OPENSTACK_KEYSTONE_DEFAULT_ROLE = "_member_"',
           "    'can_set_mount_point': True,",
           'API_RESULT_LIMIT = 1000',
           "LOGIN_URL = '/horizon/auth/login/'",