Cleanup post hostmaster D6-D7 upgrade

The hosting_site_list view (the default page after logging in) was broken... upon editing the view I got:

    Display "Defaults" has an invalid style plugin.
    Display "Page admin" has an invalid style plugin.
    Display "Block: Platform" has an invalid style plugin.
    Display "Block: Profile" has an invalid style plugin.
    Display "Block: Client admin" has an invalid style plugin.

Solution: revert the view.

Some of the Aegir specific blocks were not enabled ... Adding to the content bottom or sidebar region on /admin/structure/block is enough to resolve that.

An error in a verify task of a pre-existing D8 platform:

WD node: PDOException: SQLSTATE[HY000]: General error: 1366 Incorrect integer value: '' for column 'grant_update' at row 1: INSERT INTO {node_access} (nid, realm, gid, grant_view, grant_update, grant_delete) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1,      [error]
:db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5), (:db_insert_placeholder_6, :db_insert_placeholder_7, :db_insert_placeholder_8, :db_insert_placeholder_9, :db_insert_placeholder_10, :db_insert_placeholder_11),
(:db_insert_placeholder_12, :db_insert_placeholder_13, :db_insert_placeholder_14, :db_insert_placeholder_15, :db_insert_placeholder_16, :db_insert_placeholder_17); Array
(
    [:db_insert_placeholder_0] => 1996
    [:db_insert_placeholder_1] => hosting task
    [:db_insert_placeholder_2] => 572
    [:db_insert_placeholder_3] => 1
    [:db_insert_placeholder_4] =>
    [:db_insert_placeholder_5] => 0
    [:db_insert_placeholder_6] => 1996
    [:db_insert_placeholder_7] => hosting task
    [:db_insert_placeholder_8] => 594
    [:db_insert_placeholder_9] => 1
    [:db_insert_placeholder_10] =>
    [:db_insert_placeholder_11] => 0
    [:db_insert_placeholder_12] => 1996
    [:db_insert_placeholder_13] => hosting task
    [:db_insert_placeholder_14] => 1
    [:db_insert_placeholder_15] => 1
    [:db_insert_placeholder_16] => 0
    [:db_insert_placeholder_17] => 0
)
 in node_access_write_grants() (line 3564 of /var/aegir/hostmaster-7.x-3.x-4/modules/node/node.module).
exception 'PDOException' with message 'SQLSTATE[HY000]: General error: 1366 Incorrect integer value: '' for column 'grant_update' at row 1' in /var/aegir/hostmaster-7.x-3.x-4/includes/database/database.inc:2171                                                              [error]
Stack trace:
#0 /var/aegir/hostmaster-7.x-3.x-4/includes/database/database.inc(2171): PDOStatement->execute(Array)
#1 /var/aegir/hostmaster-7.x-3.x-4/includes/database/database.inc(683): DatabaseStatementBase->execute(Array, Array)
#2 /var/aegir/hostmaster-7.x-3.x-4/includes/database/mysql/query.inc(36): DatabaseConnection->query('INSERT INTO {no...', Array, Array)
#3 /var/aegir/hostmaster-7.x-3.x-4/modules/node/node.module(3564): InsertQuery_mysql->execute()
#4 /var/aegir/hostmaster-7.x-3.x-4/modules/node/node.module(3510): node_access_write_grants(Object(stdClass), Array, NULL, true)
#5 /var/aegir/hostmaster-7.x-3.x-4/modules/node/node.module(1183): node_access_acquire_grants(Object(stdClass))
#6 /var/aegir/hostmaster-7.x-3.x-4/profiles/hostmaster/modules/contrib/hosting/task.hosting.inc(70): node_save(Object(stdClass))
#7 [internal function]: drush_hosting_task_validate('1996')
#8 /var/aegir/src/drush/includes/command.inc(359): call_user_func_array('drush_hosting_t...', Array)
#9 /var/aegir/src/drush/includes/command.inc(210): _drush_invoke_hooks(Array, Array)
#10 [internal function]: drush_command('1996')
#11 /var/aegir/src/drush/includes/command.inc(178): call_user_func_array('drush_command', Array)
#12 /var/aegir/src/drush/lib/Drush/Boot/DrupalBoot.php(46): drush_dispatch(Array)
#13 /var/aegir/src/drush/drush.php(76): Drush\Boot\DrupalBoot->bootstrap_and_dispatch()
#14 /var/aegir/src/drush/drush.php(16): drush_main()
#15 {main}
Command dispatch complete

Adding a new D8 platform does not have this problem.