Try enabling and fix comments

Fixing some comments that were left behind or
just plain wrong. Enabling l2gw on Ubuntu again
since a new package was released, also testing
enabling of bgpvpn on Ubuntu since it said pike
release on the comment.

Change-Id: Ic0028a36b96bce6791e8b3dd7c0cb482d0cd1d2b

fixtures/scenario001.pp

@@ -17,8 +17,7 @@
 case $::osfamily {
   'Debian': {
     $ipv6                    = false
-    # panko, gnocchi and vitrage are not packaged yet in debian/ubuntu
+    # vitrage are not packaged yet in debian/ubuntu
-    # https://bugs.launchpad.net/cloud-archive/+bug/1535740
     $enable_vitrage          = false
     $om_rpc                  = 'rabbit'
     $om_notify               = 'rabbit'
@@ -51,7 +50,7 @@ if ($om_rpc == 'amqp') {
 }
 include ::openstack_integration::mysql
 class { '::openstack_integration::keystone':
-  # NOTE(sileht):zTelemetry autoscaling tempest tests can't renew token, so we
+  # NOTE(sileht): Telemetry autoscaling tempest tests can't renew token, so we
   # use a long one
   token_expiration => '2400',
 }

fixtures/scenario003.pp

@@ -37,8 +37,6 @@ case $::osfamily {
   }
 }
 
-# List of workarounds for Ubuntu Xenial:
-# - disable SSL
 if ($::operatingsystem == 'Ubuntu') and (versioncmp($::operatingsystemmajrelease, '16') >= 0) {
   # Disable Designate MDS on Ubuntu until we find why Puppet run is not
   # idempotent sometimes.

fixtures/scenario004.pp

@@ -14,16 +14,13 @@
 # limitations under the License.
 #
 
-# Disable SSL (workaround for Xenial)
 if $::operatingsystem == 'Ubuntu' {
   $ipv6            = false
   # Watcher packages are not available in Ubuntu repository.
   $watcher_enabled = false
-  # TODO(rnoriega) Enable testing for BGPVPN when UCA releases pike-m1
+  # TODO(tobasco): No service plugin 'BGPVPN'
   $bgpvpn_enabled  = false
-  # TODO(tobasco): Enable l2gw on Ubuntu again when networking-l2gw has
+  # TODO(tobasco): Plugin 'networking_l2gw.services.l2gateway.plugin.L2GatewayPlugin' not found.
-  # been cut with a newer version.
-  # See https://bugs.launchpad.net/ubuntu/+source/networking-l2gw/+bug/1739779
   $l2gw_enabled    = false
 } else {
   $ipv6            = true